图形规律
Shape patterns
根据给定的规则生成数字或图形规律;找出规律中没有直接说明但明显的特征,并用自己的话解释这些特征为什么会出现。
Generate a number or shape pattern that follows a given rule; identify apparent features of the pattern not explicit in the rule and explain informally why they occur
学习证据 / Evidence
- 在给出“从1开始,每次加3”的规则后,能写出后面的项,并注意到这些数会奇偶交替出现。
- 看到一个图形规律后,能预测接下来的三个图形,并描述其中的规则。
- 能解释为什么从2开始每次加4,得到的总是偶数。
- Given 'start at 1, add 3', generate terms and notice they alternate odd/even
- Given a shape pattern, predict the next three terms and describe the rule
- Explain why starting at 2 and adding 4 always gives even numbers
评估问题 / Assessment
如果对{{name}}说“从3开始,每次乘以2”,{{name}}能写出这串数——3、6、12、24、48——并发现它在增长过程中有什么有趣的特征吗?
If {{name}} is told 'start at 3 and multiply by 2 each time', can they write out the pattern — 3, 6, 12, 24, 48 — and spot any interesting features in how it grows?