数物品到20
Counting objects to 20
数一组物品，回答“有多少个？”，适用于最多20个物品的集合（物品可排成直线、阵列、圆圈或散放）
Count a set of objects to answer 'how many?' for sets up to 20 (arranged in lines, arrays, circles, or scattered)
学习证据 / Evidence
- 准确数出排列成一条线的至多20个物品
- 数出至多10个散落物品，不会数乱
- 给定一个1–20的数，能从更多物品中数出对应数量的物品
- Accurately count up to 20 objects in a line
- Count up to 10 scattered objects without losing track
- Given a number 1–20, count out that many objects from a larger set
评估问题 / Assessment
如果你把15个纽扣随意散放在桌上，问{{name}}有多少个，{{name}}能仔细数完所有纽扣并给出正确答案吗？
If you spread out 15 buttons on the table in a random arrangement and ask {{name}} how many there are, can they count them all carefully and give you the right answer?