Page 23 - steps 3b.pdf

24
• Pinboard areas 6 x 6 pinboard, •••• • ••• • ••
rubber bands, RM 62
~~;tl~~~ ~:l'I'l:JEI'1IIIII
HELP Box @] Make shapes of areas a to i on your pinboard. PAGE 37
Use RM 62 to draw and write about each shape you make. Like this:
These shapes
enclose areas of:
[: [] : : ~ L1 : : :;;: :1
1 .....
1 square "2 square 2 squares 1---
d + 1 + ~= 2)
... 1 .. (.. C'
LJ: : t:'!"f'. ~ ~~ .S.'\I;'a!"'i:
OJ Find the areas of these shapes. '--------- ~ . . . . . . . . .. . .... .
. "" , ....... .
.
c a t square b 2 squares c 3 squares
~';i. e
c.....,
a (> It:" ee' b ". "/-] Co ~ (c r--~ :; ..
/!
C.CjI;G I JCi "'i~CG d 2t squares e 4squares f st squares
'ClU" l'rc,'jCGG 9 8 squares h 6t squares i 8t squares
c r,.
c.;
ecccc.c.
"c.. (.. C. . ~. c c" C. '" f. C
ct. f c. " (. I. (. C. C. t. c c:. C. .,;. r~ C c: ...
~-.-
d 'oc.c.c.c.c e l~-Jc,:;", c r.. c· (,f -:. !l:t~
e c. ~.-\. e c • <=' J :. (; (; e ~-:-t:'-I
c ... ~ ) .~ G . c:::. ~,G .c;.
e '-j .:: r. "
~~c e -/ c1
<;.
p c. c C. 1:- Co e;..:;-.(;..-~
c: c. c. ~ c. Co j (:
CHALLENGE
"-"'1"
I]] Copy and continue this pattern. This 1shape has an area r "\ c :
Stop when you reach area = S squares. of 4"2 squares. • J--"l
~"! J-l '~ Find and draw other shapes
with the same area.
area = ~ square 1 square 1 ~ squares 2 squares 2~ squares
Em I STEPS 3b:1S! ISTEPS3b:1sl m
rn [gJ ~
a 4 squares Practical: copying and continuing a pattern of Practical: making shapes of areas:
1 areas, increasing by ~ square each time, as for
b 5"2 squares a ~ square b 2 squares c 3 squares
as an area of 5 squares. (1/3 a,c)
1 1
c 7 squares d 2"2 squares e 4 squares f 5"2 squares
1
d 2"2 squares g 8 squares h 6~ squares i 8~ squares
1
e 7"2 squares and trying to include ~ squares in each shape.
f 10 squares
Challenge
Find and draw other shapes with an area of 4~
squares. (1/3 b,c)