"Afu's New Clothes" PPT courseware 5

Description

"Afu's New Clothes" PPT courseware 5

Compare who observes carefully

In order to facilitate application and communication, there must be a unified standard when measuring, which is the unit of length.

A ruler is usually used to measure the length of an object.

Centimeters are generally used to measure the length of shorter objects. Centimeters can be represented by the letters cm.

Look for it

What objects around us are approximately 1 centimeter in length, width, or thickness?

Measurement methods:

1. Lay the object flat;

2. Align the left side of the object with the “0” tick mark;

3. Align the right side of the object with a few centimeters and read out the centimeters.

I am a smart little painter

I can draw a line segment 2 cm longer than 5 cm

I can draw a line segment 1 cm shorter than 5 cm

Summary

Understand the importance of unified units

Know centimeters (cm)

Able to use a ruler to measure the length of objects

Homework Supermarket

After returning home, try to measure the width of your parents' hands and the length of your parents' hands in centimeters (cm).

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"Afu's New Clothes" PPT courseware 4:

"Ah Fu's New Clothes" PPT Courseware 4 Learning Objectives 1. Understand the unit of length, centimeter, establish the spatial concept of 1 centimeter, and understand the role of centimeters in life. 2. Initially learn to estimate the length of objects and use a scale to measure the actual length of objects. 3.Experience the long journey of unity...

"Afu's New Clothes" PPT courseware 3:

"Ah Fu's New Clothes" PPT courseware 3 Review points: 1. What units of length have we learned through previous studies? 2. Know that 1 meter = 100 centimeters, 100 centimeters = 1 meter. 3. Simple calculation of meters and centimeters. Draw a picture. Warm reminder: first think about how you plan to draw? ..

"Afu's New Clothes" PPT courseware 2:

"Ah Fu's New Clothes" PPT Courseware 2 The length of the thumb and middle finger when open is the same. In order to facilitate application and communication, there must be a unified standard when measuring, which is the unit of length. A ruler is usually used to measure the length of an object. Measuring the length of shorter objects is generally...

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Update Time: 2024-11-22

This template belongs to Mathematics courseware Qingdao Edition First Grade Mathematics Volume 2 industry PPT template

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