| Category | Format | Size |
|---|---|---|
| Beijing Normal University Edition Fifth Grade Mathematics Volume 1 | pptx | 6 MB |
"Re-understanding of Axial Symmetry (2)" Axial Symmetry and Translation PPT
Description
"Re-understanding of Axial Symmetry (2)" Axial Symmetry and Translation PPT
Part One: Classroom Introduction
1. Understand axially symmetrical figures and the concept of axially symmetrical figures through observation and operation, be able to accurately judge which things in life are axially symmetrical figures, and be able to find the symmetry axis of axially symmetrical figures.
2. Through experiments, students' abstract thinking and spatial imagination are cultivated, so that students can deepen their understanding of graphics and establish spatial concepts during operations.
3. Combine the teaching materials with the reality of life to cultivate students’ interest in learning and love for life.
Re-understanding of axial symmetry PPT, part 2: exploration of new knowledge
Take a look at the graphic below
Which graphic is different? What are the other shapes?
Characteristics of axially symmetric graphics
1. The figures on both sides of the symmetry axis completely overlap. 2. The distance from the symmetry point to the symmetry axis is equal.
The picture below shows half of an axisymmetric small house. Can you draw the whole house?
If you were asked to draw, what would you draw in your other half?
Naughty drew the whole house based on half of the axially symmetrical house. Did he draw it correctly? How would you draw it?
He didn't draw it right.
Re-understanding PPT about axial symmetry, part 3: Class summary
How to draw the other half of an axially symmetrical figure:
(1) Find the key points of the given graph, such as the vertices of the graph, intersection points of line segments, endpoints, etc.
(2) Count or measure the distance from the key points of the graph to the axis of symmetry.
(3) Find the symmetry point of the key point on the other side of the symmetry axis.
(4) Connect the points in the order of the given figure and draw the other half of the given figure.
Method to complete an axially symmetrical figure:
1. Find the endpoints (key points) of each line segment on the graph;
2. Count or measure the distance from each key point to the axis of symmetry;
3. Draw the symmetry points of each endpoint according to the axis of symmetry;
4. Connect these symmetry points in sequence to obtain the other half of the axisymmetric graph.
Re-understanding of axial symmetry PPT, Part 4: Classwork
1.Draw the other half of the figure below
2. Take a look and think about how to turn "9" into "6".
3. Draw an axially symmetrical figure on the graph paper below.
4. Which piece of colored paper are the following patterns cut from? One after another.
Keywords: Beijing Normal University edition fifth grade mathematics volume PPT courseware free download, re-recognition of axial symmetry PPT download, axial symmetry and translation PPT download, .PPT format;
For more information about the PPT courseware "Axisymmetry and Translational Axial Symmetry Re-Recognition", please click the Axis Symmetry and Translation PPT Axis Symmetry Re-Recognition PPT tag.
"Re-Understanding of Axial Symmetry (2)" Download PPT of Axial Symmetry and Translation:
"Re-understanding of Axial Symmetry (2)" Axial Symmetry and Translation PPT Download Part One Content: Exciting Introduction Naughty drew the whole house based on half of the axially symmetric small house (see Picture ①) (see Picture ②), and he drew it Is it right? It cannot be completely overlapped after folding. ... ... ... Axis..
"Re-Understanding of Axial Symmetry (1)" Download PPT of Axial Symmetry and Translation:
"Re-understanding of Axial Symmetry (1)" Axial Symmetry and Translation PPT Download Part One Content: The exciting import is folded in half along the middle dotted line, then the parts on both sides of the dotted line can completely overlap. Such a figure is an axially symmetrical figure, and the middle dotted line is Symmetry axis. ... ... ...
"Re-Understanding of Axial Symmetry (1)" Axial Symmetry and Translation PPT:
"Re-Understanding of Axial Symmetry (1)" Axial Symmetry and Translation PPT Part One: Classroom Introduction 1. Go through the process of exploration and further understand the characteristics of axisymmetric graphics. 2. Will determine whether a figure is an axially symmetrical figure. 3. It can be folded and folded during operation..
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Update Time: 2024-07-06
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