Adam has 80 stickers at first.
Adam gives Bryan some.
Now, Adam has 60 stickers.
How many stickers does Adam give to Bryan?
- Which model should we draw?
(1) Model Part-whole
(2) Model Comparison
- Is the total given?
(1) Yes
(2) No
- Who gets the shorter bar?
(1) Has at first
(2) Has now
- Number of stickers that Adam gives to Bryan = _____
(a)
Which model should we draw?
(1) Model Part-whole
(2) Model Comparison
We should draw a (1) Model Part-whole.
(b)
Is the total given?
(1) Yes
(2) No
(1) The total is given.
(c)
Who gets the shorter bar?
(1) Has at first
(2) Has in the end
60 stickers is less than 80 stickers. So, (2) 'Has in the end' gets the shorter bar.
(d)
Number of stickers that Adam gives Bryan
= 80 - 60
= 20
Answer(s): (a) 1; (b) 1; (c) 2; (d) 20