The IQ Guide to Teaching Functional Mathematics Contents Introduction 3 Developing functional skills 5 Functional Skills Summary Mathematics Entry 1 6 Functional Skills Summary Mathematics Entry 2 7 Functional Skills Summary Mathematics Entry 3 8 Functional Skills Summary Mathematics Level 1 10 Functional Skills Summary Mathematics Level 2 14 Functional skills Mathematics: Useful terms and their meanings 18 IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 2 Introduction The IQ Guide to Teaching Functional Mathematics has been produced to support the teaching of Mathematics Functional Skills qualifications. Other guides in the series are: • IQ Guide to Teaching Functional English • IQ Guide to Assessing Functional English Speaking Listening and Communication (SLC) • IQ Guide to Assessing Functional English Writing • IQ Guide to Assessing Functional ICT IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 3 How to use this Guide Introduction Functional Skills mathematics standards Coverage and range The IQ Guide to Teaching Functional Mathematics has been produced by IQ so that tutors can develop teaching programmes that will prepare learners for applying the skills in life and work and ensuring that learners are successful in functional skills assessment. The Guide should be read in conjunction with the IQ Guide to Assessing Functional Mathematics. Make sure you go to the section you require. Start with understanding the mathematics standards. These are the ‘high level’ overarching criteria that the tutor should understand and apply in their teaching. They should be used to prepare schemes of work (SOW). All of the standards, coverage and range in mathematics will be assessed and so make sure that your SOW or support programme addresses all of these. The coverage and range are just that. All the things that the learner will need to know to be successful in their course of study. What does this mean? The coverage and range are ‘amplified’ so that you can see the detail of what learners must be taught in order to be successful. The standard, coverage Make sure you are confident in the differences in and range may use unfamiliar language. Use the the criteria at each of the levels before you start to glossary to help your understanding of how to deliver the skills to your learners. deliver to learners; one level builds onto the next. Examples Included are examples of where learners can practice mathematics skills. The examples are only mean to be a guide. There will be others that are suitable for your learners. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 4 Developing functional skills The aim of the functional skills standards is to develop and recognise the ability of learners to apply and transfer skills to solve mathematical problems in ways that are appropriate to their situation. The process skills apply at all levels. These are: Representing (Selecting the mathematics and information to model a situation). 30%-40% Analysing (Processing and using mathematics 30%-40% Interpreting (Explaining/justifying the answer) 30%-40% • • • • • • • • • • • • Learners understands that a situation has aspects that can be represented by mathematics Learners uses a suitable way to represent Learners decide the methods, operations and tools to use in the situation Learners select the mathematical information to use in the situation Learners use appropriate mathematical procedure Learners examine patterns and relationships Learners change values and assumption to model answers Learners find results and solutions Learners interpret results and solutions Learners draw conclusions Learners consider the appropriateness and accuracy of results and conclusions Learners choose appropriate language and forms to communicate results IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 5 Functional Skills Summary Mathematics Entry 1 Skill standards Representing 1. Understand simple mathematical information in familiar contexts and situations. Coverage and range What does this mean? Examples a Understand and use numbers with one significant figure in practical contexts Count up to 10. Add and subtract numbers up to 10. Add money and items up to 10 e.g. the cost of lunch. Work out the shortfall in numbers, e.g. eggs for a recipe, plants to fill a display tray, cups to serve visitors, volunteers for a jumble sale. b Analysing 2. Use mathematics to obtain answers to simple given practical problems c that are clear and routine. Describe the properties of size and measure, including length, width, height and weight, and make simple comparisons Compare small to large, wide to narrow. Understand full, empty, heavier and lighter. Select the lighter of two suitcases. Recognise something is too small e.g. child’s height for a ride at a theme park Describe position Be able to say that something is next to, below, and above. Left or right. Between, inside and near to. Follow directions e.g. take a lift to the top floor. 3. Generate results that make sense for a specified task. d Recognise and select coins and notes Notes £5.00 and £10.00 Coins 1, 2, 5, 10 pence Recognise the coins that would be used to buy lunch or pay for a bus fare. e Recognise and name common 2D and 3D shapes Round, square, rectangle, triangle Name the shapes round, square, cubes, rectangle, triangle f Sort and classify objects practically using a single criterion Sort using a single feature: colour, shape, gender Sort bottles into different coloured glass for the bottle bank Interpreting 4. Provide solutions to simple given practical problems in familiar contexts and situations. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 6 Functional Skills Summary Mathematics Entry 2 Skill standards Representing 1. Understand simple practical problems in familiar contexts and situations. Coverage and range What does this mean? Example a Understand and use whole numbers with up to two significant figures Numbers up to 100 You can stack boxes on a shelf 5 across and 6 high. How many boxes fit on the shelf b Understand and use addition/subtraction in practical situations Add and subtract whole numbers up to 100 Add the number of new and old pens to find a total number. c Use doubling and halving in practical situations Double and half whole numbers and money. Understand the term half and half price Work out the cost of a meal two are paying an equal share Work out the cost of prices in a half-price sale Analysing 3. Use basic mathematics to obtain answers to simple given practical problems that are clear and routine. d Recognise and use familiar measures, including time and money Use a digital and analogue clock Know the months of the year Understand measurement on clothes Recognise hour, quarter past, half past and quarter to. Pay for items using coins and notes Reading from a clock or timetable knowing the next train time. Count out £1.63 using coins available for a pint of milk and .loaf of bread. Write appointment in diary 4. Generate results to a given level of accuracy. 5. Use given checking procedures. e Recognise sequences of numbers, Recognise missing numbers in a including odd and even numbers sequence two’s, fives, ten’s. Know what side of the road a door is using odd and even numbers. f Use simple scales and measure to the nearest labelled division Read meter and a speedometer Read a temperature Read temperature on thermometer or read weight of vegetables on scales. Interpreting 6. Describe solutions to simple given practical problems in familiar contexts and situations. g Know properties of simple 2D and 3D shapes Understand the sides, edges, corners, Know the names of 3D shapes e.g. pyramid, cylinder What is the shape of a box? How many sides do you walk around rectangle shape field? h Extract information from simple lists. Lists of numbers, words, tables, compare temperatures in holiday destinations, e.g. menu Find the cheapest or most expensive item on the menu Highest temperature in the week 2. Select basic mathematics to obtain answers. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 7 Functional Skills Summary Mathematics Entry 3 Skill standards Representing 1.Understand practical problems in familiar contexts and situations 2. Begin to develop own strategies for problem solving problems. 3.Select mathematics to obtain answers to simple practical problems that are clear and routine Analysing 4.Apply mathematics to obtain answers to simple given practical problems that are clear and routine 5.Use simple checking procedures Interpreting Coverage and range What does this mean? Example a Add and subtract using Use column addition and subtraction or A customer has £175 worth of vouchers. She wants three-digit numbers partitioning to add and subtract whole to use them to buy garden furniture. The furniture is numbers less than 1000. £200. How much money will the customer need to add to the vouchers to buy the furniture? b Solve practical problems involving multiplication and division by 2, 3, 4, 5 and 10 c Round to the nearest 10 Understand place value for units, tens and or 100 hundreds. Round numbers less than 1000 to the nearest 10 and 100. Estimate answers to calculations using rounding. d Understand and simple fractions Whilst calculators are allowed for the tasks, You need £1 worth of 10p coins in your till at the strategies should be understood e.g. to beginning of the day. How many 10p coins is this? multiply by 10 move the digits one place to the left, to multiply by 5, first multiply by 10 and then halve. use Read and write common fractions, for example halves, quarters, thirds, tenths. Understand that the top number is the number of equal parts there are and the bottom number is the number of parts something has been divided into. Understand that equivalent fractions look different but have the same value. You need to buy 35 glasses for a party. The glasses are sold in packs of 10. How many will you need to buy to have enough? A clothes shop reports its sales to head office to the nearest 10 items. One week the shop sells 234 items. What number would this be reported as? A pizza has been divided in 8 pieces. If 4 of the pieces have been eaten, what fraction of the pizza is left? Understand fractions used in sales or special offers, e.g. 1/3 off IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 8 6.Interpreting and communicate solutions to practical problems in familiar contexts and situation e Understand, estimate, Read scales on measuring instruments. Find the coldest day from a set of temperatures for measure and compare Know common units and which to use when. an identified place or country. (not negative length, capacity, weight temperatures) and temperature f Understand decimals to Understand that the decimal point separates Given some heights, work out who can go on a two decimal places in pounds and pence, m and cm. theme park ride where the minimum height allowed practical contexts is 1.5m. Understand prices on a menu in a restaurant, hotel or café. g Recognise and describe Recognise patterns with repeated addition or Solve a delivery problem with house numbers number patterns multiplication such as doubling. where the even house numbers are on one side of Recognise odd and even numbers by looking the road and the odd ones are on the other side. at the unit value. h Complete simple Work with money amounts in pounds and calculations involving pence and measures with both whole money and measures numbers and numbers including one decimal place. i Recognise and name Recognise 2D shapes: circle, rectangle (not Recognise the shape of different everyday objects simple 2D and 3D oblong), square, triangle. 3D shapes: cube, e.g. box, phone, ball, money, road signs, health and shapes and their cuboid, sphere, cylinder, cone safety signs. properties j Use metric units everyday situations k Extract, use and compare information from lists, tables, simple charts and simple graphs in Know that length is measured in millimetres, centimetres, metres and kilometres; weight in milligrams, grams and kilograms and capacity in millilitres and litres. You spend £2.95 on a bus fare, how much change should you get from a £5 note. You get paid £7.50 per hour and work 6 hours a day how much do you get a day? Calculate how much flour will be left in a 1kg bag after baking a batch of cupcakes that need 300g flour. Measure milk for use in a recipe. Read information from bar charts, Use a price list to work out how much a 25kg bag pictograms, simple pie charts and tables. of sand costs. Understand the importance of titles, labels Transfer data from a tally chart into a table. and keys. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 9 Functional Skills Summary Mathematics Level 1 Skill standards Representing Coverage and range a 1.Understand practical problems in familiar contexts and situations, some of which are nonroutine 2.Indentify and obtain the necessary information to tackle the problem 4. Apply mathematics in an organised way to find solutions to straightforward practical problems for different purposes. Example Read, write, order and compare numbers, including large numbers. Be able to read meters with large numbers (up to 7 digits) such as gas and electricity meters. Recognise negative numbers in the context of temperature. Understand the storage temperature on frozen food packets.. Work to the given level of accuracy, for example nearest whole number or nearest ten. Work out how much tip to give a hair stylist if you want to include a 10% tip. Round the answer to the nearest pound. b Add, subtract, multiply and divide whole numbers using a range of strategies Use a range of calculation strategies, including mental methods, formal and informal written methods and use of a calculator. Calculate the daily takings in a shop, given the receipts for that day. c Understand and use equivalences between common fractions, decimals and percentages Read, write, order and compare common fractions, including mixed numbers, decimals with up to two decimal places and percentages. Be able to calculate 50% of the cost of an order by knowing that 50% is equal to a half and 25% being equal to a quarter Add and subtract decimals up to two decimal places Add and subtract monetary amounts. Check a bill is correct when the amount involve both pounds and pence. 3.Select mathematics in an organised way to find solutions Analysing Understand and use whole numbers and understand negative numbers in practical contexts What does this mean? d Add and subtract with metric units for example length. Know which is more - 25% off or a 1/3rd off the price. Work out wages from an hourly rate. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 10 5.Use appropriate checking procedures at each stage e Solve simple problems involving ratio, where one number is a multiple of the other Interpreting 6.Interpreting and communicate solutions to practical problems drawing simple conclusions and giving explanations Understand simple ratio as the number of parts, for example three parts to one part. Understand direct proportion as the same rate of increase or decrease, for example double, half etc. Know how to use a simple scale to estimate distance on a road map. Make up a drink of juice in the ratio of 1:5 juice and water. How many litres of drink will you make from 2 litres of juice? Scale up amounts of food for three times the number of people, put items in piles with twice as many items in one pile as in the other. Calculate how far it is between two towns given a copy of a road map and the scale of the map. f Use simple formulae expressed in words for one- or two-step operations Solve a problem that is given in words that includes a rule. N.B. There is no need to be able to generate an algebraic formula. A joint of meat takes 40 minutes per kilogram to cook plus an extra 20 minutes. How long will it take to cook a 4kg joint of meat? g Solve problems requiring calculation with common measures, including money, time, length, weight, capacity and temperature Add, subtract, multiply, divide and record sums of money. Complete an expenses sheet including mileage costs, meal costs and parking. Read, measure and record time using both the 12-hour and 24-hour clock and add and subtract times in hours and minutes. Calculate how long a gym is open for by using the opening and closing times displayed on a sign. Read timetables correctly. Use a bus timetable to work out which bus you need to catch to arrive at in interview by 11am. Read, estimate, measure, compare and calculate length, distance, weight, capacity, and temperature. Calculate the amount of wallpaper needed to wallpaper a room given the room dimensions and the size of a roll of wallpaper. Understand and use a mileage chart. Work out the shortest distance for a delivery driver when given the distances between each town in a mileage chart. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 11 h i Convert units of measure in the same system Understand the metric system and be able to convert between metric units for length, weight and capacity. Work out areas and perimeters in practical situations Know that the perimeter is the boundary of a Calculate the amount of fencing needed to go around a play area. shape and is measured in units of length. Know that area is a measure of 2D space, measured in square units and that the area of a rectangle = length × width. Know that measurements must be in the same units before calculating. Convert someone’s height in centimetres to metres for an application form. Convert grams to kilograms for building materials. Calculate the amount of turf needed for a football pitch. Calculate the area of a door when the height is given in metres but the width is given in centimetres. Work out how many smaller boxes can fit in a larger box for delivery. j Construct geometric diagrams, models and shapes k Extract and interpret information from tables, diagrams, charts and graphs Construct models, draw shapes. Draw the net of a packaging box. . Understand that title, labels, and key provide information and know how to read a scale on an axis. Know how to use a simple scale such as 1cm to 1m, 20mm to 1m. 1cm to 1km Get information from tables such as a timetable or pricelist, and charts such as a pictogram, simple pie chart or bar chart, single line graphs. Given a graph of sales, write a comment as to whether the sales have increased or decreased. Be able to plan furniture for a room given room dimensions and furniture sizes. Work out the attendance at a series of sports event by reading the information from a bar chart. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 12 l Collect and record discrete data and organise and represent information in different ways Collect (including by making accurate observations) and record discrete data in a tally chart. Organise discrete data in a table. Represent discrete data in pictograms, bar charts and line graphs. Draw a table to record the lunch order in an office. Draw a correctly labelled graph to show your head office weekly takings. Identify that more staff are needed to handle enquiries between 12:30 and 1:30pm because a graph shows that this is the busiest time. Know how to choose a sensible scale and to label charts, graphs and diagrams. Represent the results of calculations to show the purpose of the task. m n Find mean and range Use data to assess the likelihood of an outcome Calculate the mean average by summing all the values then dividing by the number of items. 200 people donate some money to a charity. The total raised is £470, what the mean average donation? Understand that the range measures the spread of a set of data and is calculated by finding the difference between the largest and smallest value. Identify the most consistent runner given a table with some runners and their last four lap times. Understand that some events are impossible, some events are unlikely to occur, some events are likely to occur and some events are certain. Know that if a shop is closed on a Sunday, it is impossible that someone can buy a meal on a Sunday in that shop. Know that the chance, or probability, of something happening can be calculated but understand that having two outcomes does not mean each are equally likely. Realise that when crossing the road, you will either get to the other side safely or not, but it is not equally likely that both events occur. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 13 Functional Skills Summary Mathematics Level 2 Skill standards Representing 1.Understand routine and non-routine problems in familiar contexts and unfamiliar contexts and situations 2.Indentify the situation or problems and identify the mathematical methods needed to solve them 3. Choose from a range of mathematics to find solutions Analysing Coverage and range What does this mean? Example a Understand and use positive and negative numbers of any size in practical contexts Read, write, order and compare positive and Find the lowest temperature from a chart where negative numbers of any size. some numbers are positive and some are Understand the meaning of negative negative (minus) numbers in a practical context. Use a bank statement to work out if you need to ask for an overdraft or are in surplus. b Carry out calculations with numbers of any size in practical contexts, to a given number of decimal places Add, subtract, multiply and divide numbers up to two decimal places. Use column addition and subtraction. Use short and long multiplication and division and chunking. Work out calculations mentally, with jottings, and with a calculator. Interpret money and time amounts on a calculator. Estimate answers to calculations. Nearest hundred, ten, unit, tenth hundredth, nearest pound. Use estimation to work out distance and time. Use the calculator to check answers. Work out the cost of holiday for four, with flights, hotel, transfers. Compare with an alternative holiday to find the cheapest. Work out the cost of building an extension to a house, given cost of items and the quantities. Work out times and distances to compare types of transport. Work out the weekly budget of family. Estimate the cost for a month and a year. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 14 4.Apply mathematics to find solutions c 5.Use appropriate checking procedures and evaluate their effectiveness at each stage Understand, use and calculate ratio and proportion, including problems involving scale Write a ratio in its simplest form. 6:4 = 3:2. Recognise when a ratio is used. Divide an amount into a given ratio. Use scales in both maps and diagrams. Scale quantities up or down The total cost for a job is £200. If the ratio between labour and materials is 5:3, how much was the labour? Calculate the distance of a journey from a map Interpreting 6.Interpret and communicate solutions to multi-stage practical problems in familiar and unfamiliar contexts and situations 7.Draw conclusions and provide mathematical justifications Work out materials in construction materials, diluting liquid for hair preparations. Work out the scale of a plan that is 1:20 e.g. if a room is 9m by 7m, what are the dimensions, in cm, on the plan? Scale up (and scale down) recipes when cooking e.g. if 200g of flour for 12 cakes, how much would you need for 24? d Understand and use equivalences between fractions, decimals and percentages Simplify fractions. Simplify fractions to their simplest form e.g. = . Find fractions of a quantity. Improper and mixed numbers. Work out percentages of a quantity. Work out percentage increase and decrease Convert between fractions, decimals and percentages. e.g.37% as a fraction and a decimal? Order fractions, decimals and percentages. Write one number as a fraction of another. Compare overtime rates Find of a restaurant bill Show as a mixed number. Write fractions of an hour as decimals on a time sheet. Work out the discount on goods for increased quantities Work out which is the better value 25% off or off? Calculate a percentage pay increase and decrease. Write mixed forms from smallest to largest e.g.0.23, , 27%, , 0.029. Work out what fraction of gym members are males if there are 300 men and 550 are women. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 15 e Understand and use simple formulae and equations involving one- or two-step operations Substitute numbers into a formula and derive a formula in words. Understand the order of operations.(BIDMAS) Calculate the speed when a car travels 8 miles in 10 minutes using the formula s=d÷t Work out the cooking time for a joint of meat which can be calculated as 35 minutes per 500g plus an extra 35 minutes. Calculate how long a 2.2 kg joint would take. 3+4x5=? Add brackets to make this calculation correct: 7 x 5 + 2 = 49 f Recognise and use 2D representations of 3D objects Sketch 3D solids and draw them accurately on isometric grids. Use of nets to calculate surface area. Use plans, elevations. Draw the net of a packaging box Given a 3D representation of a house, draw the front and top view g Find area, perimeter Perimeter and area of triangles, trapezoids, and volume of common and parallelograms and rectangles. shapes Calculate circumference and areas. Understand the symbol for pi and know its approximate value. Volume of cuboids and cylinders. Calculate the area of a compound shape made up of rectangles and triangles for example, a plot of land Calculate how much edging strip would be required for a circular pond with a diameter of 10m? Calculate the volume of water in a pond that is 3m by 2m and 60cm deep. h Use, convert and calculate using metric and, where appropriate, imperial measures Use a conversion graph to calculate how many Euros you would get for £100 Calculate the total length of skirting board if you have three strips which are 1.2m, 1.7m and 67cm long. You want to bake a cake which needs 8oz flour. You have a 500g bag, will this be sufficient? Conversion-graphs. Convert between metric units and use mixed units of measure within the same system, for example m and cm, giving answer in m. Convert between metric and imperial units. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 16 i Collect and represent discrete and continuous data, using ICT where appropriate Collecting data in tally charts. Represent data in Frequency tables, Pie charts, Bar charts, Line graphs, Scatter graphs. Get relevant information from different sources or first-hand by measuring or observing. Understand how to use scales in diagrams, charts and graphs. Know how to choose a suitable format and scale to fit the data and ensure all charts, graphs and diagrams are labelled. j Use and interpret statistical measures, tables and diagrams, for discrete and continuous data, using ICT where appropriate Know how to extract discrete and continuous data from tables, spread sheets, bar charts, pie charts and line graphs. Draw a conclusion from a scatter diagram, Work out percentages for each part of pie chart, Identify trends looking at graphs and charts. k Use statistical methods Comparison of two groups using measure of to investigate situations average and range or by comparing proportions in a pie chart. Find the mean, median and mode and understand that each average is useful for different purposes and use the range to describe the spread within a set of data, for example sales results. l Use probability to Calculate theoretical probabilities and assess the likelihood of compare probabilities. an outcome Explain why the probability of choosing a red card from a pack of cards is = a club = and an ace = A bag of 10 balls contains six red balls. A spinner divided into five equal sections has two red sections. In which situation is red most likely? IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 17 Functional skills Mathematics: Useful terms and their meanings Acute angle An angle less than 90°. Adjacent Adjacent sides are next to each other and are joined by a common vertex. Algebra Algebra is the branch of mathematics where symbols or letters are used to represent numbers. Angle An angle is formed when two straight lines cross or meet each other at a point. The size of an angle is measured by the amount one line has been turned in relation to the other. Approximate An approximate value is a value that is close to the actual value of a number. Arc Part of a circumference of a circle. Area The amount of space a shape takes up. E.g. the area of the lawn is 35 square metres. Asymmetrical A shape which has no lines of symmetry. Average A value to best represent a set of data. There are three type of average - the mean, the median and the mode. Axis An axis is one of the lines used to locate a point in a coordinate system. Bearing A three digit angle measured from north in a clockwise direction. BIDMAS A way of remembering the order in which operations are carried out. It stands for Brackets - Indices - Division - Multiplication - Addition Subtraction. Bisect To divide an angle or shape exactly in half. Brackets Used to determine the order in which operations are carried out. For example, 3 + 4 x 2 = 11 but (3 + 4) x 2 = 14. Calculate To work out the value of something. This does not have to mean you need a calculator! Centilitre (cl) A measure of volume. 100 centilitres = 1 litre (100 cl = 1 l). 1 centilitre = 10 millilitres (1 cl = 10 ml). Centimetre (cm) A measure of distance. 1 centimetre = 10 millimetres. (1 cm = 10 mm). 100 centimetres = 1 metre. (100 cm = 1 m). Chord A straight line drawn from one point on the edge of a circle to another. Circumference The perimeter of a circle. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 18 Coefficient The number in front of an algebraic symbol. For example the coefficient of 5x is 5. Congruent If you can place a shape exactly on top of another then they are said to be congruent. You may rotate, reflex or translate the shape. Constant A letter or symbol whose value always stays the same. The constant Π is a common example. Credit To add money to a bank account. For example, I had £500 credited to my bank account. Cross section The end section created when you slice a 3D shape along its length. Cube number The product when an integer is multiplied by itself twice. For example 5 cubed = 5 x 5 x 5 = 125. Cuboid A 3D shape with all sides made from rectangles. Cumulative frequency A running total of the frequencies, added up as you go along. Day A time period of 24 hours. There are 7 days in a week. Debit To take out money from a bank account. For example, £400 was debited from my account. Decagon A ten sided polygon. Decimal Not a whole number or integer. For example, 3.6 or 0.235. Decrease To make an amount smaller. Denominator The bottom part of a fraction. Diameter The distance across a circle which passes through the centre. Difference Subtract the smaller value from the larger value to find the difference between two numbers. Distance How far away an object is. For example, it is a distance of 3 miles to the city centre. Distribution How data is shared or spread out. Equal Used to show two quantities have the same value. Equation Two expressions which have the same value, separated by an '=' sign. E.g. 3y = 9 + y Equilateral triangle A triangle with all sides and angles the same size. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 19 Estimate To find an approximate answer to a more difficult problem. E.g. 31.2 x 5.94 is roughly equal to 30 x 6 = 180. Even number Any number which is a multiple of 2. Even numbers always end in 2, 4, 6, 8 or 0. Expand To multiply out brackets in an expression. For example, 2(3x + 7) = 6x + 14. Expression A collection of terms which can contain variables (letters) and numbers. E.g. 4pq - q + 7 Factor A number that divides another number exactly. E.g. 4 is a factor of 12. Figures Another name for numbers. For example one thousand and fifty in figures is 1050. Formula An equation used to describe a relationship between two or more variables. Frequency How many times something happens. Another word for 'total'. Frequency density The frequency divided by the class width. Gradient How steep a line is. Found by dividing the distance up by the distance across. Gram (g) A measure of mass. 1 gram = 1000 milligrams. (1 g = 1000 mg) HCF Stands for 'highest common factor'. It is the largest factor common to a set of numbers. E.g. The HCF of 16 and 24 is 8. Heptagon A seven sided polygon. Hexagon A six sided polygon. Histogram A diagram drawn with rectangles where the area is proportional to the frequency and the width is equal to the class interval. Hypotenuse The longest side on a right angled triangle. Increase To make an amount larger. Indices Another name for powers such as ² or ³. Integer A whole number. Inter-quartile range The difference between the upper and lower quartile. (IQR) Irrational A decimal which is never ending. It must also not be a recurring decimal. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 20 Justify Another word for 'explain'. Often crops up on your maths exam. E.g. 'Calculate the mean and range for each player. Who is the better player Justify your answer.' Kilogram (Kg) A measure of mass. 1 kilogram = 1000 grams. (1 kg = 1000 g) Kilometre (Km) A measure of distance. 1 kilometre = 1000 metres. (1 km = 1000 m) LCM Stands for 'lowest common multiple'. It is the smallest multiple common to a set of numbers. E.g. The LCM of 3 and 4 is 12. Litre (l) A measure of volume. 1 litre = 100 centilitres (1 l = 100 cl). 1 litre = 1000 millilitres (1l = 1000 ml). Lower range The smallest value in a set of data. Mean A type of average found by adding up a list of numbers and dividing by how many numbers are in the list. Median The middle value when a list of numbers is put in order from smallest to largest. A type of average. Metre (m) A measure of distance. 1 metre = 100 centimetres. (1 m = 1000 cm). Millilitre (ml) A measure of volume. 10 millimetres = 1 centilitre (10 ml = 1 cl). 1000 millilitres = 1 litre (1000 ml = 1 l). Millimetre (mm) A measure of distance. 10 millimetres = 1 centimetre. (10 mm = 1 cm). Modal Another term for mode Mode The most common value in a list of numbers. If two values are tied then there is two modes. If more than two values are tied then there is no mode. A type of average. Month A time period of either 28, 30 or 31 days. There are 12 months in a year. Multiple A number which is part of another number's times table. E.g. 35 is a multiple of 5. Natural number A positive integer Negative A value less than zero Nonagon A nine sided polygon. Numerator The top part of a fraction. Obtuse angle An angle between 90 and 180 . IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 21 Octagon An eight sided polygon. Odd number A number that is not a multiple of 2. Odd numbers always end in 1, 3, 5, 7 or 9. Operation An action which when applied to one or more values gives an output value. The four most common operations are addition. subtraction, multiplication and division. Parallel Two or more lines which are always the same distance apart. Parallelogram A quadrilateral with two pairs of parallel sides. Pentagon A five sided polygon. Perimeter The distance around a shape. Perpendicular Two or more lines which meet at right angles. Pi (Π) An irrational constant used when calculating the area and circumference of circles. It is approximately equal to 3.14. Polygon A shape made from straight lines. Positive number A number greater than zero. Prime A number which has exactly two factors. The number one and itself. Prism A 3D shape with the same cross section all along its length. Probability A measure of how likely an event is to occur. Product The answer when two values are multiplied together. Quadratic equation An equation where the highest power is two. For example x² + 4x + 6 = 0 is a quadratic equation. Quadrilateral A four sided polygon. Radius The distance from the centre of a circle to its circumference. The plural of radius is radii. Random sampling A method of choosing people at random for a survey. Range The largest number take away the smallest value in a set of data. Rational A decimal number which ends or is recurring. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 22 Reciprocal The reciprocal of any number is 1 divided by the number. E.g. the reciprocal of 3 is 1/3., the reciprocal of 3/4 is 4/3. Recurring A decimal which never ends but repeats all or parts of the sequence of numbers after the decimal point. E.g 0.333333 or 0.141414. Reflex angle An angle greater than 180 . Regular A shape with all sides and angles the same size. Remainder The amount left over when a number cannot be divided exactly. For example, 21 divided by 4 is 5 remainder 1. Right angle An angle of 90 . Rotation To turn a shape using an angle, direction and centre of rotation. Round To reduce the amount of significant figures or decimal places a number has. For example £178 rounded to the nearest £10 is £180. Scale factor How many times larger or smaller an enlarged shape will be. Segment An area of a circle enclosed by a chord. Sequence A list of numbers which follows a pattern. For example 6, 11, 16, 21, ... Simplify To write a sum, expression or ratio in its lowest terms. For example 4:10:6 can be simplified to 2:5:3. Solid A 3D shape. Solve To find the missing value in an equation. Speed How fast an object is moving. Average speed = Total distance divided by time taken. Square number The product when an integer is multiplied by itself. For example, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100. Sum The answer when two or more values are added together. Surface area To total area of all sides on a 3D shape. Symmetrical A shape which has at least one line of symmetry. Tally A system of counting where every group of four vertical lines is followed by a horizontal line to easily count in steps of five. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 23 Tangent A straight line that just touches a point on a curve. A tangent to a circle is perpendicular to the radius which meets the tangent. Term A number, variable or combination of both which forms part of an expression. Transformation The collective name for reflections, rotations, translations and enlargements. Translation To move a shape from one position to another by sliding in the x-axis followed by the y-axis. Trapezium A quadrilateral with one pair of parallel sides. Tree diagram A method of solving probability questions by listing all the outcomes of an event. Probabilities are calculated by multiplying down the branches. Triangle A three sided polygon. Triangular number A sequence of numbers generated by adding one more than was added to find the previous term. For example, 1, 3, 6, 10, 15, 21, ... Units A quantity used to describe a measurement. Examples are kilograms, metres and centilitres. Upper range The largest value in a set of data. Value A numerical amount or quantity. Variable A letter which we don't know the value of. Volume The amount an object can hold. E.g. a bottle of cola has a volume of 2 litres. Week A time period of 7 days. Wide Used to describe the width of something Width The distance from side to side. E.g. 'The swimming pool is 10 metres wide.' X-Axis The horizontal axis on a graph. The line going across the page. Y-Axis The vertical axis on a graph. The line going from top to bottom. Y-Intercept The value of the y-coordinate when a graph crosses the y-axis. Year A time period of 12 months or 365 days. (366 in a leap year.) Z-Axis Represents the depth of an object when working with 3D coordinates. IQ Guide to Teaching Functional Skills Mathematics | August 2014 | 24
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