Page 31 - IPMaths_leaflet

Sample page • Maths 5 • Student's Book

activities that reinforce mathematical skills and domain(s) taught in each
acquired knowledge through practice lesson highlighted

3.8 Calculate area 3.8

Activities
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H H H H H H H H o w m a n y s q u a r r r r r r r r e s d o e s t h e s ec o nd 1. Calculate the areas. Then complete the sentences.
How many squares does the second
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rectangle have in each row?
r r ec t t a ng l l e ha v e i n ea c h r o w ? 1 cm
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1 cm
Alex made two
rectangles with
the same area,
one with 3 rows A B C
of 8 squares
and another area of A: area of B: area of C:
with double the
number of rows.
a. Rectangle ____ has the smallest area.
b. Rectangle ____ can have the same area as a rectangle with 8 rows of squares.
c. Rectangle ____ can have the same area as a rectangle with 10 rows of squares.
Each square has
2. Answer the questions. a side of 1 cm!
L o ok ! a. What is the area of 5 squares? ________
Look!
The area of a square with a side of 1 cm is 1 square centimetre. 1 cm b. What is the area of a rectangle with 7 rows of 6 squares? ________
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The square centimetre (cm ) is a unit to measure area. c. How many rows of 3 squares does a rectangle with
1 cm
an area of 15 cm have? ________
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We can multiply the number of columns by the number of rows to find the area of a
rectangle. d. How many columns of 6 squares does a rectangle with
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3 rows of 8 squares 6 rows of 4 squares an area of 42 cm have? ________
3. What rectangles have an 4. Find the area on a grid of coordinates!
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3 rows area of 40 cm ? Complete
the table with the number of (1,2) (1,6) (5,6) (5,2)
6 rows rows and columns. 6
5
8 columns Rows Columns 4
3
2
8 × 3 = 4 × 6 = 24 cm
2
Both rectangles have an area of 24 cm . 1
2
4 columns
0 1 2 3 4 5 6 7
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inquiry-based exploration activities and
brainteasers that enhance critical thinking and
boost appreciation of maths
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