Adam has 50 stickers at first.
Adam gives away 30 stickers.
How many stickers are there left?
- 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) At first
(2) Adam gives away
- Number of stickers left = _____
(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) At first
(2) Adam gives away
30 stickers is less than 50 stickers. So, (2) 'Adam gives away' gets the shorter bar.
(d)
Number of stickers left
= 50 - 30
= 20
Answer(s): (a) 1; (b) 1; (c) 2; (d) 20