Bryan and Adam have 20 beads.
Bryan has 8 less beads than Adam.
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) Bryan
(2) Adam
- 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) Bryan
(2) Adam
Bryan has 8 less beads than Adam.
So, (1) Bryan gets the shorter bar.
(d)
If 8 beads are taken away from Adam, Bryan and Adam will have the same number of beads.
Number of beads that Bryan has
= (20 - 8) ÷ 2
= 12 ÷ 2
= 6
Answer(s): (a) 2; (b) 1; (c) 1; (d) 6