Adam and Bryan have 100 beads.
Adam has 50 more beads than Bryan.
Find the number of beads that Bryan has.
- 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 beads 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
(1) The total is given.
(c)
Who gets the shorter bar?
(1) Adam
(2) Bryan
Adam has 50 more beads than Bryan.
So, (2) Bryan gets the shorter bar.
(d)
If 50 beads are taken away from Adam, Adam and Bryan will have the same number of beads.
Number of beads that Bryan has
= (100 - 50) ÷ 2
= 50 ÷ 2
= 25
Answer(s): (a) 2; (b) 1; (c) 2; (d) 25