Adam has 10 stickers.
He lacks 30 stickers.
How many stickers does he need altogether?
- 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) What Adam has
(2) What Adam lacks
- Number of stickers that Adam needs altogether = _____
(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
(2) The total is not given.
(c)
Who gets the shorter bar?
(1) What Adam has
(2) What Adam lacks
10 stickers is less than 30 stickers. So, (1) 'What Adam has' gets the shorter bar.
(d)
Number of stickers that Adam needs altogether
= 10 + 30
= 40
Answer(s): a) 1; (b) 2; (c) 2; (d) 40