Using Ten Frames to Teach Number Sense with Students with Significant Disabilities Ann Jacobson, MEd, MRT [email protected] Nichole Kertis, LOT [email protected] Available electronically at http://www.livebinders.com/edit?id=282660 or http://tinyurl.com/883ndq3 or INTRODUCTION Concrete-Representational-Abstract (CRA) Sequence The CRA sequence enables students to understand the concepts prior to memorizing facts, algorithms, and operations. The CRA sequence helps students with learning difficulties by showing the students meaningful connections, teaching conceptual understanding, providing a graduated framework for learning, and blending conceptual and procedural learning. Concrete Three-dimensional objects (i.e., manipulatives) Representational Two-dimensional drawings Abstract No objects or drawings For students with learning difficulties the CRA sequence: Shows students meaningful connections Teaches conceptual understanding Provides a graduated framework for learning Blends conceptual and procedural learning Concrete Concept/skill modeled with concrete materials (i.e., manipulatives) Manipulatives are objects that can be used to help students understand mathematics National Council of Teachers of Mathematics (NCTM) suggests manipulatives should be used as part of the process of teaching math Manipulatives can be purchased or created o Household (i.e., pennies, spoons) and classroom (i.e., paper clip, construction paper) objects can be used • Manipulative examples: o Bears, bugs, dinosaurs o Colored chips o Unifix cubes o Golf tees o Candy o Bean bags o Popsicle sticks o Base-10 blocks o Beans and bean sticks o Dominoes o Buttons o Counters o Fraction bars o Pizza slices o Tangrams o Pentominoes o Geoboards o Algeblocks Tips for using manipulatives: o Don’t call manipulatives “toys” o Allow students free play time (15-20 min) to explore and experiment o Free play time reduces the likelihood that students will not pay attention during lesson o Establish rules and consequences o Do not touch unless teacher directs o Establish a routine for distributing and collecting o Don’t ask student to memorize manipulative procedures o Manipulatives are a tool, but not the focus of instruction o Students don’t learn math simply because they use manipulatives o Discussion, interaction o Not all students benefit from using manipulatives o Assist with the transition from manipulatives (concrete) to nonmanipulatives (representational) o Work with other teachers to develop a manipulative library NUMBER SENSE Number sense is the ability to know what numbers mean. Some important number sense activities include the following: Counting One-to-one correspondence Counting forward Counting backward Counting on Skip counting – 2s, 5s, 10s Comparing numbers Before and after More and less BASIC FACTS There are 390 “basic facts” for addition, subtraction, multiplication, and division. Instruction should focus on the following: Conceptual understanding What the operation means Procedural development Step-by-stop procedures for advanced problems Strategies for answering non-memorized facts Declarative knowledge Factual memory of facts Problem-solving ability Transfer of previous learning to new situations Addition and Subtraction Basic Facts 100 addition basic facts: Combinations of single-digit addends that result in a single- or double-digit sum 100 subtraction basic facts: Combinations in which the subtrahend and difference are single-digit numbers and the minuend is either a single- or double-digit number Addition and Subtraction Basic Facts Suggested order of introduction o Doubles (3 + 3, 14 – 7) o Facts that involve one (3 + 1, 8 – 1) o Facts that involve zero (4 + 0, 9 – 0) o Facts that involve one more than doubles (5 + 6) o Reciprocals (5 + 4 and 4 + 5) Suggestions for instruction o Introduce 3 or 4 facts at a time, beginning with the easiest (+1, +2, doubles) o Keep related facts together (2 + 1, 3 + 1, 4 + 1) o Introduce reverse of facts soon after first fact is presented (3 + 2 and 2 + 3) o Teach facts 0-9 and then 10-18 Whole-number properties of addition o Commutative property (4 + 3 = 3 + 4) o Associative property [ (5 + 1) + 2 = 5 + (1 + 2) ] Strategies for addition and subtraction o Number-after rule or one rule o Zero rule o One more strategy o Counting-on strategy o Doubles +1 strategy o Related facts strategy o Counting-up strategy Ten Frame Activities How Many? - Counters placed in a consistent order - Goal is to achieve automaticity – to recognize the amount without counting Build the Number - Student is able to place the correct number of counters on the 10 frame, in the appropriate places, when told a number More or Less? - Student is able to compare two 10 frames or a 10 frame and a number and determine which is more and which is less Ten Frame Activities How Many More to 10? - Student is able to determine how many empty spaces in a 10 frame Addition Facts - Student is able to use counters to solve simple addition problems. (Consider using a different color counter for each addend.) The Double Ten Frame - May be used for above activities with larger numbers. (Look for student readiness to move to a 100s chart.) Skip Counting - Limited use for recognizing skip counting patterns – probably time to move to the 100s chart! Resources Ten Frame Ideas http://illuminations.nctm.org/ActivityDetail.aspx?ID=75 Complements to Ten http://www.education.vic.gov.au/studentlearning/teachingresources/ma ths/mathscontinuum/number/N15compten2.htm#1 Using Excel as a Graphic Organizer: Making a Ten Frame (to use on a Smart Board) http://www.internet4classrooms.com/excel_ten_frame.htm Smartboard Ten Frame http://www.youtube.com/watch?v=aQ0cpiD_dO4&feature=related Dot Frames Lesson 1 http://www.youtube.com/watch?v=OBSO3PvC67c&NR=1 10 Facts with a 10 Frame http://www.youtube.com/watch?v=h_xFBoSEyj8&feature=channel Ten Frame http://www.youtube.com/watch?v=vlrDL1qUdlA&feature=related Games for developing a visual sense of number to 10 http://mindfull.files.wordpress.com/2007/10/games-we-played-today.pdf Tens Frame and Place Value Games http://nrich.maths.org/2479 Use Tens Frames to Teach Guided Math Lessons http://guidedmath.wordpress.com/2010/03/31/use-ten-frames-to-teachguided-math-lessons/ Building Numbers Up to Ten http://illuminations.nctm.org/LessonDetail.aspx?ID=L547 Must Have: Free Ten Frame Flashcards! http://www.montgomeryschoolsmd.org/schools/oaklandes/mathstudent workpages/gr1un2page6.html Free Customizable Tens Frames Graphic Organizer http://www.teachervision.fen.com/addition/graphicorganizers/44567.html Five and Ten Frame Resources http://www2.carrollk12.org/instruction/elemcurric/math/tframes.HTM It’s a Fact! http://www.uen.org/Lessonplan/preview.cgi?LPid=10985 Effective Uses for Ten Frames http://lrt.ednet.ns.ca/PD/BLM/table_of_contents.htm Mathematics Blackline Masters Grades P to 9 http://lrt.ednet.ns.ca/PD/BLM/table_of_contents.htm Ten Frames War Game http://elemed.ucps.k12.nc.us/parent_resources/PA%202_1_1%20Tens%20 Game.pdf
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