"Understanding Centimeters and Using Centimeters to Measure" Unit of Length PPT

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"Understanding Centimeters and Using Centimeters to Measure" Unit of Length PPT

Part One: Learning Objectives

1. Experience the formation process of length units, realize the necessity of unifying length units, and understand the role of length units.

2. During the activity, students can understand the unit of length "centimeter" and initially establish the concept of length of 1 centimeter. At the same time, try to estimate the length of smaller objects; initially learn to use a ruler to measure the length of objects in whole centimeters.

3. Understand the diversity of measurement methods and have a preliminary understanding of measurement units.

4. Feel the fun of learning mathematics, cultivate a sense of cooperation, explore and understand the inner connections of knowledge.

Learn important and difficult points

1. Establish the concept of length of 1 centimeter and master the method of measuring objects in centimeters.

2. Able to accurately and flexibly estimate the length of smaller objects.

Understanding Centimeters and Using Centimeters to Measure PPT, Part 2: Situation Introduction

To measure the length of an object, length units are used.

Explore new knowledge

In ancient times, it was not easy to know the length of an object. People often use part of the body as a unit of measurement for length.

How wide is this stone?

Open your hand and take the length of the two ends of your thumb and middle finger as the unit of measurement, which is called a length.

How long is this piece of cloth?

Use the length of the foot as the unit for measuring length.

Understanding Centimeters and Using Centimeters to Measure PPT, Part Three: Consolidate and Improve

1. Use your body to measure.

Please use these length units to measure the length of objects in life.

(1) The length of the mathematics book is about ( )�.

(2) The length of the desk is about ( )�.

(3) The blackboard is about ( ) tu.

(4) The classroom is about ( ) steps long.

2. Look for and measure.

The length from 0 to 1 on the ruler is 1 cm.

From ( ) to ( ) is also 1 cm,

From ( ) to ( ) is still 1 cm.

Use a ruler to measure. The width of your index finger is about ( ) centimeters.

The palm width is about ( ) centimeters,

A length of about ( ) centimeters.

PPT on understanding centimeters and measuring in centimeters, Part 4: Class Summary

When measuring the length of an object, the same unit of length should be used.

"0" indicates the starting point of measurement

unit of length

The length between 0 and 1 is 1 cm.

PPT on understanding centimeters and measuring in centimeters, Part 5: 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 centimeters and measuring in centimeters, download of length unit PPT, .PPT format;

For more information about the PPT courseware "Knowing Centimeters as a Unit of Length and Measuring in Centimeters", please click on the PPT tag of "Knowing Centimeters as a Unit of Length and Measuring in Centimeters".

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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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