面积（8岁及以上）
Area (age 8+)
通过数单位方格（平方厘米、平方米、平方英寸、平方英尺）来测量面积。
Measure areas by counting unit squares (square cm, square m, square in, square ft)
学习证据 / Evidence
- 数单位方格，求出L形图形的面积。
- 用1平方厘米的方格片测量书封面的面积。
- 通过数单位方格比较两个图形的面积。
- Count unit squares to find the area of an L-shaped figure
- Measure the area of a book cover using square-centimetre tiles
- Compare areas of two shapes by counting their unit squares
评估问题 / Assessment
如果{{name}}在方格纸上画了一个图形，他们能否通过数方格来求出它的面积——包括对不完整的方格做出合理的估算？
If {{name}} draws a shape on squared centimetre paper, can they find its area by counting the squares — including making a sensible estimate for any partial squares?