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```Name
Date
Multiple Towers and Division Stories
Missing Factors
You need
Multiple Towers and
4ⴛ7
7ⴛ4
6ⴛ
1ⴛ
2ⴛ2
1
ing She
6
Spread out all the Array Cards in front
of you, with the product side showing.
2
Choose an Array Card. One dimension is
given. Your job is to say what the other
dimension is. This is the missing factor. For
example, if you choose an Array Card that
has a total of 16, and one dimension is 2,
the missing factor is 8.
ion 4
Play alone or with a partner.
1
Date
Division Stories
Missing Factor
s Record
et
As you play Mis
sing Factors, wri
te equations for
that you keep.
each array
Write two equ
ations, one mul
one division. Circ
tiplication and
le the missing
factor in each
equation.
Example: 2 8 16 and 16
28
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
Sessions 2.4, 2.5, 4.3,
4.4
Unit 3
M45
4084_0
84_0_R
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M_G4-U
4-U03
03 M45
3
card. If your answer is not correct, return the card to the set of Array Cards,
factor side up.
4
On the Missing Factors Recording Sheet, write two equations, one multiplication
equation and one division equation, to go with each array you keep. Circle
the missing factor. For example:
2 8 16
and
16 2 8
5
If you are playing with a partner, take turns choosing cards until all of the
cards with products still showing have been picked up.
6
When there are cards with only factors sides showing, take turns pointing
to a card and saying what is on the other side (the total number of squares),
keeping the cards when your answers are correct. The player with the most
cards wins.
M44
Unit 3
Sessions 2.4, 2.5, 4.3, 4.4
• set of Array Cards
• Missing Factors
Recording Sheet
Name
```
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