顺数和倒数（6岁及以上）
Counting forwards and backwards (age 6+)
能从任意数（不只是10的倍数）开始，十个十个地往前数或往后数。
Count forwards and backwards in tens from any number (not just multiples of 10)
学习证据 / Evidence
- 从不是10的倍数的起点（如7）开始，数出7、17、27、37……
- 从83开始十个十个地倒数
- 解释加10或减10的规律
- Count 7, 17, 27, 37 … from a non-multiple starting point
- Count backwards in tens from 83
- Explain the pattern of adding/subtracting 10
评估问题 / Assessment
如果让{{name}}从37开始，十个十个地往上数，他/她能说出37、47、57、67，并且跨过整百也不卡住吗？
If {{name}} starts at 37 and you ask them to count up in tens, can they say 37, 47, 57, 67 — crossing over into the next hundred without getting stuck?