After finding them in the classroom or outdoors, children can outline the triangles with colored tape. For example, they might make right triangles red and scalene triangles blue.
在教室和户外发现这些图形之后，儿童可以用彩色胶带勾勒出这些三角形，例如，他们可以用红色胶带做直角三角形，用蓝色胶带做不等边三角形。
Use colored tape or strings to show cause-effect relationship.
用一些涂有颜色的绳子去展示因果关系。
Use colored tape or strings to show cause-effect relationship.
用一些涂有颜色的绳子去展示因果关系。
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