Using compensation to calculate
Spine 2: Multiplication and Division – Topic 2.25
Primary
KS2
Year 6
Mastery PD Materials
Introduction
Learn how multiplication and division calculations are affected when one element of the calculation is multiplied or divided by a scale factor.
Teaching points
- Teaching point 1: For multiplication, if there is a multiplicative change to one factor, the product changes by the same scale factor.
- Teaching point 2: For division, if there is a multiplicative change to the dividend and the divisor remains the same, the quotient changes by the same scale factor.
- Teaching point 3: For division, if there is a multiplicative increase to the divisor and the dividend remains the same, the quotient decreases by the same scale factor; if there is a multiplicative decrease to the divisor and the dividend remains the same, the quotient increases by the same scale factor.