Today we reviewed about shapes.

Triangles and Rectangles

Q: Which one is a triangle? Why?

A: The ________ one is a triangle, because it has three ________ sides and three ________.

Q: Which one is a rectangle? Why?

A: The ________ one is a rectangle, because it has four ________ sides and four ________ corners.

Q: Which one is a square? Why?

A: The ________ one is a square, because it has four ________ sides that are ________ and four ________ corners. Square is a special rectangle.

Three-Dimensional Shapes

This is a cuboid. It has ________ faces.

This is the net of a ________.

This is a pyramid. It has ________ faces.

This is the net of a ________.

This is a cylinder. It has ________ faces.

This is the net of a ________.

This is a cube. It has ________ faces.

This is the net of a ________.

1.复习回顾已经学习过的2D图形和3D图形；

2.掌握图形的定义并能够用英文进行表达。

1. 根据文档和语音链接进行复习；

2. 完成下发的作业纸；

★ 3. 下节课从以下表格中听写5个单词。