Bryan has 14 marbles.
Adam has 3 less marbles than Bryan.
How many marbles does Adam 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) Bryan
(2) Adam
- Number of marbles that Adam 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) Bryan
(2) Adam
Adam has 3 less than Bryan.
So, (2) Adam gets the shorter bar.
(d)
Number of marbles that Adam has
= 14 - 3
= 11
Answer(s): (a) 2; (b) 2; (c) 2; (d) 11