Adam has 70 marbles.
Bryan has 20 marbles.
How many marbles do they have 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) Adam
(2) Bryan
- What is the total number of marbles?
(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) Adam
(2) Bryan
Adam has 70 marbles but Bryan has 20 marbles.
20 is less than 70. So, (2) Bryan gets the shorter bar.
(d)
Total number of marbles
= 70 + 20
= 90
Answer(s): (a) 1; (b) 2; (c) 2; (d) 90