Mathematics Number Representation & Place Value Representational 6–8 yrs

Representing Numbers

数的表示方法

Description

Identify, represent, and estimate numbers using different representations including the number line

Mastery Evidence

✓ Place a two-digit number on a 0–100 number line in approximately the right position
✓ Estimate 'about how many' objects are in a set of 30–50 without counting
✓ Represent the same number using base-ten blocks, a number line, and a drawing
✓ Represent a three-digit number using base-ten blocks, a number line, or a place-value chart
✓ Estimate where a number falls on a 0–1000 number line
✓ Match a base-ten representation to the correct numeral

Assessment Prompt

Can your child show a number like 346 in different ways — as base-ten blocks, on a number line, or as a drawing — and explain what each representation shows?