This resource can help to identify students' understanding of calculating perimeter and area for the Measurement Standard and multiplicative strategies.

Learning Progression Frameworks

This resource can provide evidence of learning associated with

EXTENSION: Tim then decides to put a new fence around both fields Y and Z. How much fencing intotal does he need?

EXTENSION ANSWER: 90 m (or accept if d) = c) × 9 ÷ 4). [very difficult]

Diagnostic and formative information:

Student response

Likely calculation

Likely reason

c)

100

200

400

25 × 4

50 × 4

100 × 4

Confuses area and perimeter or assumes
side length of 25 m (= 100 ÷ 4).
Assumes side length of 50 m (= 100 ÷ 2)
(may be confusing area and perimeter).
Assumes side length of 100 m
(may be confusing area and perimeter).