Rectangular: door

Triangle: roof

Squares: windows

Circle: the sun

Parallelogram: The rectangles and squares in the picture are special parallelograms.

This topic mainly examines the new picture obtained by graphic translation and rotation, and requires students to draw with translation knowledge reasonably.

1. Rotation in life: screw the nut with a wrench, take water from the windmill, and rotate the blades of the wind turbine around the shaft.

2. Translation in life: The car moves in a straight line, pushing and pulling the window switch and drawer.

Extended data:

First of all, the essence of translation

1. The shape and size of the graph have not changed before and after translation, but the position has changed.

2. After the graphic is translated, the line segments connected by the corresponding points are parallel (or on the same straight line) and equal.

3. Multiple consecutive translations are equivalent to one translation.

Second, the nature of rotation.

1, rotation does not change the size of the graph, but the position and direction have changed.

2. The distance from the corresponding point to the rotation center is equal.

3. The included angle of the connecting line between the corresponding point and the rotation center is equal to the rotation angle.

4. The figures before and after rotation are congruent, that is, the size and shape of the figures before and after rotation have not changed.