Western Normal University Edition First Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 1
People's Education Press First Grade Mathematics Volume 1
People's Education Press Second Grade Mathematics Volume 1
People's Education Press Third Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 1
Hebei Education Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
People's Education High School Mathematics Edition B Compulsory Course 2
Jiangsu Education Edition Fourth Grade Mathematics Volume 1
People's Education Press First Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 2
Category | Format | Size |
---|---|---|
Western Normal University Edition Fifth Grade Mathematics Volume 1 | pptx | 6 MB |
Description
"Axisymmetric Graphics" PPT courseware on translation, rotation and symmetry of graphics
Observe and compare carefully:
Which picture is more beautiful? Which picture is not beautiful? Why?
Can you draw shapes with different sizes on the left and right sides exactly the same? Today we will learn "Axisymmetric Figures".
learning target
1. Understand the phenomenon of "axial symmetry" through life examples and understand the meaning of "axially symmetrical figures" and "axis of symmetry". Be able to recognize axisymmetric figures and determine their symmetry axis.
2. In rich real-life situations, students can gradually develop spatial concepts through mathematical activities such as observation, appreciation, analysis, imagination, and creation.
3. Feel the beauty of mathematics through the study of axially symmetrical figures.
Observe the six figures above. Some of them are the axisymmetric figures we have learned before. Can you find them?
Discussion, communication and reporting:
Except for figure ④, which is not an axially symmetrical figure, the other five figures are all axially symmetrical figures.
What do these graphics have in common?
Fold these shapes left and right so that both sides overlap completely.
Summary
If a figure is folded in half along a straight line and the figures on both sides of the straight line can completely overlap, the figure is an axially symmetrical figure.
Observe and think:
Among the axisymmetric figures just mentioned, which figures have only one axis of symmetry? Which figures have several axes of symmetry?
Let’s see who is the best!
Recall that among the shapes you have learned, which shapes are axially symmetrical? How many axes of symmetry does each have?
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For more information about the "Translation, Rotation and Symmetry of Axisymmetric Graphics" PPT courseware, please click on the "Translation, Rotation and Symmetry of Axisymmetric Graphics ppt ppt" tag.
"Axisymmetric Graphics" graphic motion Flash animation courseware:
"Axisymmetric Figures" Flash Animation Courseware for the Movement of Figures This courseware is a teaching material for the third unit of the third grade mathematics volume of the Hebei Education Edition. The Flash animation courseware for axially symmetric figures is an axially symmetrical figure. The content is vivid and vivid, so please download it! Keywords: graphics movement teaching course..
"Understanding Axisymmetric Figures" PPT courseware on the movement of graphics:
"Understanding Axisymmetric Figures" The Movement of Figures PPT Courseware Teaching Objectives 1. Combined with examples, experience the process of feeling the phenomenon of axial symmetry, observing and operating, etc., to understand axially symmetric figures. 2. Understand the meaning of symmetry, be able to find symmetry phenomena in life, and have a preliminary understanding of axis pairs..
"Axisymmetric Figures" PPT courseware 3:
"Axisymmetric Figures" PPT Courseware 3 Like this, a figure that can completely overlap on both sides after being folded in half is an axially symmetric figure. This straight crease is the axis of symmetry. Group discussion and report results Which graphics are axially symmetrical graphics? How many axes of symmetry does each have? A rectangle has two...
File Info
Update Time: 2024-09-30
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