Adam has 900 stickers at first.
Adam gives away some stickers.
He has 800 stickers left.
How many stickers does he give away?
- Which model should we draw?
(1) Model Comparison
(2) Model Part-whole
- Is the total given?
(1) Yes
(2) No
- Who gets the shorter bar?
(1) Left
(2) At first
- Number of stickers that he gives away =
(a)
Which model should we draw?
(1) Model Comparison
(2) Model Part-whole
As Adam has 900 stickers at first before he gives away some,
we should draw a (2) Model Part-whole.
(b) Is the total given?
(1) Yes
(2) No
(1) Yes, the total (at first) is given.
(c)
Who gets the shorter bar?
(1) Left
(2) At first
900 stickers is the total at first.
So, (1) Left gets the shorter bar.
(d)
Number of stickers that he gives away
= 900 - 800
= 100
Answer(s): (a) 2; (b) 1; (c) 1; (d) 100