"Fun Building" PPT courseware

Description

"Fun Building" PPT courseware

What graphics did Xiaowen, Xiaogang, and Xiaoli see respectively?

Exploration Tips

1. The observation directions are mainly: front, side (left or right) and above.

2. When observing, the line of sight should be perpendicular to the surface being observed.

3. Group cooperation, 3 people observe from the front, side, and above, and 1 person records and draws pictures.

4. How many faces are you seeing? How are they arranged?

1. When observing, the line of sight should be perpendicular to the surface of the object being observed, so that what you see is a flat figure;

2. Observed from different directions, the plane graphics obtained may be the same or different.

we discover:

Observing three-dimensional figures of different shapes from the same angle, their plane figures are sometimes the same and sometimes different.

summary

Through today’s learning and activities,

I understand - the front, side and top of objects

I learned-

How to observe objects:

Stand in different positions and observe an object comprehensively from different angles.

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"Fun Building" PPT courseware 4:

"Fun Building" PPT Courseware 4 Think: Which side of the toy are you sitting on? What part of the toy do you see? (Observe again after changing positions in a certain order. Do you see the same thing before and after comparison? Why?) Generally speaking, in different positions and from different angles,...

"Fun Building" PPT courseware 3:

"Fun Building" PPT Courseware 3 Warm reminder: When observing an object, ① the line of sight should be perpendicular to the surface of the object. ②The front, side and top are all relative to the observer. Group discussion: What did you discover through observation? Observe the same object from different angles,...

"Fun Building" PPT Courseware 2:

"Fun Building" PPT Courseware 2 Guess, who saw the following pictures from which direction? The same object is observed from different angles, and the observation results are different. Independent practice 1. Take a look and think about it. From which direction did you see it? ..

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Update Time: 2024-11-25

This template belongs to Mathematics courseware Qingdao Edition Fourth Grade Mathematics Volume 2 industry PPT template

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