MATHEMATICS PERFORMANCE TASKS
TASK 4
How Tall are You?
Strand: Measurement
When students started learning about metric, Branden’s
teacher said that beginning at age 2, children grow about 6
centimeters per year.
Branden is 125 centimeters tall and is 9 years old. In the table
below, Branden used his current age and height to calculate
his possible height for each of the previous 3 years.
Branden’s Age and Height
Branden’s Age Branden’s Height (centimeters)
9 125
8 119
7 113
6 107
Task 1: Branden used the equation 7 x 6 + ☐ = 125cm to estimate how tall he was at
age 2. Will the equation give him a reasonable estimate of his height at age 2?
………………………………………….....................................................................................
Explain your answer by relating the information in the table to the given equation.
MATHEMATICS PERFORMANCE TASK 12 CHRISTIE WAINWRIGHT
Perormance Task - How Tall are ou