| Category | Format | Size |
|---|---|---|
| Hebei Education Edition Third Grade Mathematics Volume 1 | pptx | 6 MB |
"Understanding Perimeter" Perimeter of Rectangle and Square PPT Courseware
Description
"Understanding Perimeter" Perimeter of Rectangle and Square PPT Courseware
teaching objectives
1. Combined with the typical example of lace for small fabrics, go through the process of discussion, measurement, communication and other processes to understand the circumference.
2. Know the meaning of perimeter and be able to point out and measure the perimeter of the surface of an object.
3. Encourage students to actively participate in measurement activities and feel the close connection between mathematics and life.
Situation introduction
How to determine how long to cut the lace of this small pink fabric?
To determine how long the lace of this small pink fabric art needs to be cut, it is to find the length of this small fabric art fabric in one week.
The lace is the circumference of the small fabric material.
Explore new knowledge
1. Point out the sides of coins, textbook covers, pencil boxes, and desk tops.
The length of the coin's side is the circumference of the coin's face.
The length of the textbook cover edge is the perimeter of the textbook cover.
The length of the edge line on the surface of the pencil box is the circumference of the surface of the pencil box.
The length of the edge of the desk is the perimeter of the desk.
The length of the sides of an object's surface is called its perimeter.
Class summary
perimeter
meaning
The length of the edge of the object surface
Measurement methods
Irregular graphics rope measurement method
For regular graphics, first measure the length of each side and then calculate the length of a week.
practice
1. Measure the circumference of the surface of your pencil box and the cover of your math textbook, and fill it in the table.
2. Collaborate with your deskmates according to their level.
(1) Measure waist and head circumference.
(2) Measure the circumference of a leaf.
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For more information about the PPT courseware "Perimeter of Rectangles and Squares and Understanding Perimeter", please click on the Perimeter of Rectangle and Square ppt and Understanding Perimeter ppt tag.
"Understanding Perimeter" Rectangle and Square PPT Courseware:
"Understanding Perimeter" Rectangle and Square PPT Courseware Find and Touch Find the objects around you and touch the circumference of its surface with your hands. Practical activity: Work with a classmate to measure the circumference of your favorite shape or object. Keywords: rectangle and..
"Understanding Perimeter" Quadrilateral PPT Courseware:
"Understanding Perimeter" Quadrilateral PPT Courseware This courseware provides a comprehensive introduction to perimeter through small exercises, which improves students' interest in learning and helps students better understand and remember the knowledge points of multiplication in tables. It is a good classroom teaching Courseware. Keywords: Quadrilateral courseware..
File Info
Update Time: 2024-07-04
This template belongs to Mathematics courseware Hebei Education Edition Third Grade Mathematics Volume 1 industry PPT template
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