Adam has 80 beads at first.
Adam gives Bryan some.
Now, Adam has 30 beads.
How many beads does Adam give to Bryan?
- 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) Has at first
(2) Has now
- Number of beads that Adam gives to Bryan = _____
(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
(1) The total is given.
(c)
Who gets the shorter bar?
(1) Has at first
(2) Has in the end
30 beads is less than 80 beads. So, (2) 'Has in the end' gets the shorter bar.
(d)
Number of beads that Adam gives Bryan
= 80 - 30
= 50
Answer(s): (a) 1; (b) 1; (c) 2; (d) 50