Fractions and Decimals 17, Place Value 23_Guided and Independent Investigations
(Year 4) ACMNA016, NSW MA2 7NA
Round a number with one or two decimal places to the nearest whole number.
GUIDED AND INDEPENDENT INVESTIGATION
These investigations allow children to investigate and explain the concept in new and varied situations, providing formative
assessment data for both the child and the teacher. ‘Doing’ mathematics is not enough and is not a good indicator of
understanding.
Children investigate and explain independently over many lessons at just beyond their current level of understanding, informing
both themselves and the teacher of their current level of understanding. It is during independent investigation that deep understanding and
metalanguage develops.
As they investigate, allow children to experience confusion (problematic knowledge) and to make mistakes to
develop resilience and deep understanding, If children knew what it was they were doing, it would be called learning!
GUIDE children through the INVESTIGATION process until they are ready to investigate INDEPENDENTly.
Round to whole
number using
number line.

In pairs, children select playing cards to make a number with decimals to tenths or to hundredths. Children place the number
on a number line between 2 whole numbers. Children identify which whole number the number is closer to. Children round
the number to that whole number.
Round to whole
number without a
number line.

In pairs, children select playing cards to make a number with decimals to tenths or to hundredths. Children identify the 2
whole numbers that the number falls between. Children identify which whole number the number is closer to. Children round
the number to that whole number.
Website: http://www.alearningplace.com.au
Email: [email protected]
Twitter: @learn4teach
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1
Identify decimal
between whole
numbers.

In pairs, 1 child selects 2 sequential whole numbers. The other child records a number with decimals to tenths or hundredths
that comes between the 2 whole numbers.. The children identify which of the whole numbers the number is closer to and
would be rounded to.
Identify decimal
numbers to
round to given
whole number.

In pairs, children select a card to make a whole number. Children take turns to record numbers with decimals to tenths or
hundredths that would be rounded to that selected whole number.
Website: http://www.alearningplace.com.au
Email: [email protected]
Twitter: @learn4teach
YouTube: A Learning Place A Teaching Place
Facebook: A Learning Place
2
Investigating Rounding Numbers with Decimals to the Nearest Whole Number
FRACTIONS AND DECIMALS 17, PLACE VALUE 23 Round numbers to 2 decimal places to nearest whole number
Select playing cards to make a number with decimals to tenths or to hundredths.
Place the number on a number line between 2 whole numbers.
Identify which whole number the number is closer to.
Round the number to that whole number.
http://www.alearningplace.com.au
Investigating Rounding Numbers with Decimals to the Nearest Whole Number
FRACTIONS AND DECIMALS 17, PLACE VALUE 23 Round numbers to 2 decimal places to nearest whole number
Select playing cards to make a number with decimals to tenths or to hundredths.
Identify the 2 whole numbers that the number falls between.
Identify which whole number the number is closer to.
Round the number to that whole number.
http://www.alearningplace.com.au
Investigating Rounding Numbers with Decimals to the Nearest Whole Number
FRACTIONS AND DECIMALS 17, PLACE VALUE 23 Round numbers to 2 decimal places to nearest whole number
Sit with a friend.
1 of you select 2 sequential whole numbers.
Your friend records a number with decimals to tenths or hundredths that comes between the 2
whole numbers.
Identify which of the whole numbers the number is closer to, and therefore would be rounded to.
http://www.alearningplace.com.au
Investigating Rounding Numbers with Decimals to the Nearest Whole Number
FRACTIONS AND DECIMALS 17, PLACE VALUE 23 Round numbers to 2 decimal places to nearest whole number
Sit with a friend.
Select a card to make a whole number.
Take turns to record a number with decimals to tenths or hundredths that would be rounded to
that selected whole number.
http://www.alearningplace.com.au