Mathematics
Counting & Cardinality
Procedural
6–7 yrs
Counting forwards and backwards
向前和向后数数
Description
Count forwards and backwards in steps of 3 from 0
Mastery Evidence
- Count 3, 6, 9, 12, 15 … up to at least 30
- Count backwards in 3s from 30
- Identify the next number in a sequence of multiples of 3
Assessment Prompt
Can your child count in threes — 3, 6, 9, 12, 15 — far enough to reach 30 without losing track or needing to start over?
Prerequisites 1
Counting in 2s
以3为单位的跳数建立在已掌握的以2、5和10为单位跳数概念的基础上
Unlocks 0
No follow-up topics