Adam has 90 beads at first.
Adam gives away 80 beads.
How many beads does Adam have in the end?
- 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) At first
(2) Adam gives away
- Number of beads that Adam has in the end = _____
(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) At first
(2) Adam gives away?
80 beads is less than 90 beads. So, (2) 'Adam gives away' gets the shorter bar.
(d)
Number of beads that Adam has in the end
= 90 - 80
= 10
Answer(s): (a) 1; (b) 1; (c) 2; (d) 10