Hebei Education Edition Second Grade Mathematics Volume 2

Description

"Understanding Centimeter" PPT

Part One: Learning Objectives

1. In measurement activities, realize the importance of establishing a unified unit of length.

2. Can perform simple length unit conversion.

3. Cultivate students' preliminary awareness and habits of estimation, and develop students' preliminary spatial concepts.

Understanding Centimeter PPT, Part 2: Scenario Introduction

Tell me which one is longer and which one is shorter?

Estimate how many crayons are the length of a pencil?

Explore new knowledge

Measured in different ways,

The need to establish a unified unit of length

Recognize the unit length unit centimeter

Understanding centimeters PPT, the third part: detailed explanation of classic questions

Table collaboration, measure the length of the class tabletop.

Use items around you as tools and measure them.

One "�": Spread your thumb and middle finger, and the distance between the two ends is one "�".

Everyone uses crayons as measuring tools and measures again.

This time the measurement results are the same!

To get the same results, you need to use unified measurement units

The "centimeter" on the ruler is an internationally used unit of length.

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For more information about the PPT courseware "Centimeters, Decimeters and Meters to Know Centimeters", please click on the centimeters to decimeters and meters ppt to know centimeters ppt tag.

"Understanding Centimeters" Centimeters and Meters PPT Courseware 2:

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"Understanding Centimeters" Centimeters and Meters PPT Courseware:

"Understanding Centimeters" Centimeters and Meters PPT Courseware Look carefully, what's on the ruler? The vertical lines of different lengths on the ruler are called tick marks. The numbers arranged in order from smallest to largest are called scales. Centimeter is a commonly used unit of length. Centimeters can be represented by the letters cm...

"Understanding Centimeters and Meters" Unit of Length PPT Courseware:

"Understanding Centimeters and Meters" Unit of Length PPT Courseware 1. Story Introduction 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. 2. Explore new knowledge When using a ruler to measure the length of a paper strip...

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Update Time: 2024-09-05

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