Mathematics Algebra Procedural 10–11 yrs

Using Simple Formulae

运用简单公式

Description

Use simple formulae expressed in words or symbols to calculate values (e.g. perimeter = 2 × (length + width))

Mastery Evidence

✓ Substitute values into P = 2(l + w) to find the perimeter of a rectangle
✓ Use the formula for area of a triangle (A = 1/2 × b × h) given base and height values
✓ Interpret a formula expressed in words and use it to compute an output

Assessment Prompt

If your child is told that the perimeter of a rectangle uses the formula perimeter = 2 × (length + width), can they plug in the measurements and work out the answer?