影子
Shadows
用图形展示数据，揭示一天中影子长度和方向的变化规律、昼夜循环以及随季节变化的星空规律。
Represent data in graphical displays to reveal patterns of daily changes in shadow length and direction, day and night cycles, and seasonal star patterns
学习证据 / Evidence
- 测量并记录一天中不同时间的影子长度和方向
- 绘制图表，展示一天中影子长度如何变化
- 将影子变化与太阳的视位置和地球自转联系起来
- Measure and record shadow length and direction at different times of day
- Create a graph showing how shadow length changes throughout the day
- Connect shadow patterns to the sun's apparent position and Earth's rotation
评估问题 / Assessment
{{name}}能测量一天中不同时间的影子，把结果画在图表上，并解释为什么影子在早晨和傍晚最长、在中午最短吗？
Can {{name}} measure their shadow at different times of day, plot it on a chart, and explain why it's longest in the morning and evening but shortest at midday?