Multiplicative relationships
I can calculate the multiplier for any two given numbers.
Multiplicative relationships
I can calculate the multiplier for any two given numbers.
Lesson details
Key learning points
- Any value divided by itself is equal to one.
- One is the multiplicative identity.
- There exists a multiplier for any pair of values.
Common misconception
Using additive strategies instead of multiplicative.
Emphasise that proportional relationships maintain a constant multiplier so we are looking for a multiplicative relationship.
Keywords
Reciprocal - Reciprocal is the multiplicative inverse of any non-zero number. Any non-zero number multiplied by its reciprocal is equal to 1
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
2 -
$$\frac{1}{2}$$
3 -
$$\frac{1}{3}$$
$$\frac{3}{2}$$ -
$$\frac{2}{3}$$
-3 -
$$\left(-\frac{1}{3}\right)$$
-2 -
$$\left(-\frac{1}{2}\right)$$
$$\left(-\frac{5}{2}\right)$$ -
$$\left(-\frac{2}{5}\right)$$
Exit quiz
6 Questions
The additive step from A to B -
4
The additive step from B to A -
(-4)
The multiplier from A to B -
$$\frac{3}{2}$$
The multiplier from B to A -
$$\frac{2}{3}$$
