Adam has 80 beads at first.
Adam gives away 70 beads.
How many beads are there left?
- 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 left = _____
(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
70 beads is less than 80 beads. So, (2) 'Adam gives away' gets the shorter bar.
(d)
Number of beads left
= 80 - 70
= 10
Answer(s): (a) 1; (b) 1; (c) 2; (d) 10