Adam has 11 marbles.
Bryan has 3 less marbles than Adam.
How many marbles does Bryan have?
- 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) Adam
(2) Bryan
- Number of marbles that Bryan has =
(a)
Which model should we draw?
(1) Model Part-whole
(2) Model Comparison
We should draw a (2) Model Comparison.
(b)
Is the total given?
(1) Yes
(2) No
(2) The total is not given.
(c)
Who gets the shorter bar?
(1) Adam
(2) Bryan
Bryan has 3 less than Adam.
So, (2) Bryan gets the shorter bar.
(d)
Number of marbles that Bryan has
= 11 - 3
= 8
Answer(s): (a) 2; (b) 2; (c) 2; (d) 8