"Understanding Line Segments and Measuring Line Segments" Length Unit PPT

Description

"Understanding Line Segments and Measuring Line Segments" Length Unit PPT

Part One: Learning Objectives

1. Be able to recognize line segments, use language to describe the characteristics of line segments, use a ruler to measure the length of line segments, draw whole centimeter-long line segments, and count the number of line segments.

2. Personally experience operating activities and the process of observing, understanding, measuring, drawing and counting line segments.

3. Actively participate in learning activities and understand that mathematics comes from life and is applied to life.

Learn important and difficult points

1. Recognize the characteristics of line segments and be able to use a ruler to draw line segments and measure the length of specified line segments.

2. Establish the representation of line segments and be able to distinguish line segments.

Understanding line segments and measuring and drawing line segments PPT, part 2: review and import

Measure it.

Palm width is about ( ) cm

One inch is about ( ) centimeters long

One step is about ( ) centimeters long

PPT on understanding line segments and measuring and drawing line segments, part three: exploring new knowledge

Students, who would like to measure the length of this rope?

A stretched line can be viewed as a line segment.

Line segments are straight and length can be measured.

Draw a line segment 3 cm long.

Think about it, where else can you draw from?

Draw from scale 1 to scale 4, from scale 2 to scale 5, etc., all are 3 cm.

do you know?

A ruler is a tool for measuring length. What other tools do students know about measuring length?

PPT on understanding line segments and measuring and drawing line segments, part 4: Consolidate and improve

1. Can you tell which line below is longer? Put a "√" after the long line segment.

2. Which of the following are line segments, please put “√” in ( ).

3. Fill it out.

(1) The line segment is ( ) and has ( ) endpoints.

(2) A ( ) line segment can be drawn between two points.

4. Count, there are ( ) line segments in the picture.

PPT on understanding line segments and measuring and drawing line segments, Part 5: Class Summary

Recognize line segments

1. The line segment is straight.

2. There are 2 endpoints.

3. Line segments are long and short.

Measure and draw line segments

PPT on understanding line segments and measuring and drawing line segments, Part 6: Homework

1. Select from the after-class exercises;

2. Complete the exercises in this lesson in the exercise book.

Keywords: Free download of PPT courseware for second grade mathematics from the People's Education Press, download of PPT on understanding line segments and measuring and drawing line segments, download of length unit PPT, .PPT format;

For more information about the PPT courseware "Length Units for Recognizing Line Segments and Measuring and Drawing Line Segments", please click the Length Unit PPT for Recognizing Line Segments and Measuring and Drawing Line Segments PPT tab.

File Info

Update Time: 2024-11-22

This template belongs to Mathematics courseware People's Education Press Second Grade Mathematics Volume 1 industry PPT template

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