多步问题解决
Multi-Step Problem Solving
在教师支持下，理解涉及较大数字或混合运算的多步问题，能将其拆分成几个部分、选择合适策略，并检查答案是否合理。这一阶段的孩子正在引导下逐步养成这一习惯；独立评价策略的能力将在之后形成。
With teacher support, make sense of multi-step problems involving larger numbers or mixed operations by breaking them into parts, choosing strategies, and checking answers for reasonableness — children at this stage are developing the habit with guidance; independent strategy evaluation comes later
学习证据 / Evidence
- 把1000以内的两步应用题拆分成几个子问题，并分别解决每一部分。
- 在计算前先估算答案，以建立答案是否合理的参照基准。
- 用不同方法或逆运算检查答案，并在需要时修正。
- Break a two-step word problem within 1000 into sub-problems and solve each part
- Estimate an answer before calculating to set a reasonableness benchmark
- Check an answer using a different method or inverse operation and revise if needed
评估问题 / Assessment
如果{{name}}算出的答案对于一道数学题来说明显太大或太小，即使您没有指出来，{{name}}会注意到并回头检查吗？
If {{name}} gets an answer that seems way too big or too small for a maths problem, do they notice and go back to check, even without you pointing it out?