Western Normal University Edition First Grade Mathematics Volume 1
People's Education Press First Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 1
People's Education Press Third Grade Mathematics Volume 1
People's Education Press Second Grade Mathematics Volume 1
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
Hebei Education Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 1
People's Education High School Mathematics Edition B Compulsory Course 2
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 2
Jiangsu Education Edition Fourth Grade Mathematics Volume 1
Qingdao Edition Second Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
!["Opposite Angle" PPT Courseware 2](https://font2020.oss-cn-beijing.aliyuncs.com/ppt1/68f6b65c526e237b2471059f5da4df2d.jpg)
Category | Format | Size |
---|---|---|
Qingdao Edition Seventh Grade Mathematics Volume 2 | pptx | 6 MB |
Description
"Opposite Angle" PPT Courseware 2
learning target:
1. Understand the concept of vertex angle and be able to identify it in graphics;
2. Master the property that vertex angles are equal and be able to use the properties of vertex angles to perform related reasoning and calculations.
Preview before class
1. If ∠1+ ∠2= 180°, then ∠1 and ∠2 _____.
2. It is known that ∠ 1=30 °, ∠2 is the adjacent supplementary angle of ∠1, then ∠ 2=_______.
3. As shown in the figure, BP is the angle bisector of ∠ABC, ∠ABC=40 °, then ∠ABP=_______.
4. ∠1 and ∠2 are supplementary angles to each other, and ∠3 and ∠2 are also supplementary angles to each other, then ∠ 1______ ∠ 3.
1. Independent learning (read textbook P16 and P17 and complete the following questions)
Definition of vertex angle:
(1) Point out the edges and vertices of ∠1.
(2) Extend AO and DO to obtain OC and OB, forming ∠2. Observe these two angles. What are their characteristics?
(3) Summary:
Definition of vertex angle: _______________.
So we can get in the above figure: ∠ ___ and ∠___ are opposite vertex angles, and ∠___ and ∠___ are opposite vertex angles.
2. Cooperation and exchange (opposite angles are equal)
1. Operation: Each student draws a pair of opposite vertex angles and measures their degrees respectively.
Guess: In the picture below, ∠ 1= ∠ 2, ∠3= ∠4. (Why?)
Conclusion: If two angles are opposite vertex angles, then the two angles _____. Simply put: _____ is equal.
2. As shown in the figure, straight lines AB and CD intersect at point O, and ray OE is the angular bisector of ∠BOD. It is known that ∠AOD=110 °,
Find the degrees of ∠COB, ∠BOE and ∠EOD.
2. Definition of vertex angle
As shown in the figure, straight lines AB and CD intersect at point O. We call ∠1 and ∠2 the opposite vertex angles.
Characteristics of the opposite vertex angle: (Characteristics of the position of the angle)
(1) The vertices are the same;
(2) The sides of the angle are opposite extensions of each other.
3. Independent exploration:
As shown in the figure, what is the relationship between ∠1 and ∠3?
This reasoning process can be written as:
∵ ∠1+∠2=180 °, ∠3+∠2=180 ° (square angle definition)
∴ ∠ 1= ∠3 (supplementary angles of the same angle are equal)
Vertical angles are equal
Keywords: Diagonal teaching courseware, Qingdao edition seventh grade mathematics volume 2 mathematics PPT courseware download, seventh grade mathematics slide courseware download, diagonal PPT courseware download, .PPT format;
For more information about the PPT courseware "Diagonal Diagonal", please click the Diagonal Diagonal ppt tab.
"Opposite Angle" PPT courseware 3:
"Opposite Vertex Angle" PPT Courseware 3 Experiment and Investigation 1 Among the four angles obtained by the intersection of two straight lines, what are the characteristics of each two angles at the vertex and side? Exercise 1 Are 1 and 2 in the picture below opposite corners? Why? Exercise 2 As shown in the figure, straight lines AE and BD intersect at point O, ..
"Opposite Angle" PPT courseware:
"Opposite Vertical Angle" PPT Courseware Learning Objectives 1. Understand the concept of antipodal angle and be able to identify antipodal angles in graphics. 2. Be able to reason out the properties of equality of vertex angles. 3. Be able to reason and calculate using the property that vertex angles are equal. Observation and thinking 1. Read page 15 of the textbook...
File Info
Update Time: 2024-09-06
This template belongs to Mathematics courseware Qingdao Edition Seventh Grade Mathematics Volume 2 industry PPT template
"Opposite Angle" PPT Courseware 2 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Opposite Angle" PPT Courseware 2 is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Opposite Angle" PPT Courseware 2, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Preview
![《对顶角》PPT课件2
(1)](https://font2020.oss-cn-beijing.aliyuncs.com/ppt1/68f6b65c526e237b2471059f5da4df2d.jpg)
![《对顶角》PPT课件2
(2)](https://font2020.oss-cn-beijing.aliyuncs.com/ppt1/dd55dcfcd8a757de4125c6abe4ed14d2.jpg)
![《对顶角》PPT课件2
(3)](https://font2020.oss-cn-beijing.aliyuncs.com/ppt1/436f13ebee1d927a0ad3e5d5262c2577.jpg)