Using bar models to represent known times tables
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Lesson details
Key learning points
- In this lesson, we will compare arrays and bar models, and use them as ways of visualising multiplication questions. We will use bar models to help us solve multiplication problems.
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5 Questions
Q1.
Commutativity means...
It's too hard to answer
subtraction
Q2.
4 x 5 has exactly same answer as
2 x 5
40 x 5
5 x 5
Q3.
48 is the answer to 4 x 12 and
12 x 2
2 x 12
4 x 10
Q4.
5 x 9 and 9 x 5 =
40
50
55
Q5.
4 people each buy 8 new pens. How many pens were bought in total?
30
4
8
5 Questions
Q1.
Bar models help us by...
giving us the exact answer
having nice colours
Q2.
Arrays and bar models can represent the same thing?
False
Q3.
This bar model could show...
12 x 9
3 x 6
5 x 6
Q4.
What could be the question this bar model is showing?
16 x 3 =
4 x 3 = 16
4 x 5 = 16
Q5.
4 x ? = 20 (Use the bar model to help you)
20
4
6