"Beachside" PPT courseware

"Beachside" PPT courseware
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Qingdao Edition First Grade Mathematics Volume 2 pptx 6 MB
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"Beachside" PPT courseware

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"Beachside" PPT courseware

teaching objectives

Master the vertical calculation method of adding two digits plus two digits (without carry), and initially master the basic requirements and format of vertical calculations.

Experience the process of exploring the calculation method of adding two digits to two digits within 100, experience the diversity of algorithms, and develop the accuracy, agility and flexibility of thinking.

Classmates, look at what the children are doing?

What mathematical information can you get from the picture?

1. Xiaolan caught 12 crabs and Xiaotao caught 26 crabs.

How many crabs were caught in total?

2. Xiaoli caught 11 prawns and Xiaolong caught 23 prawns.

How many prawns were caught in total?

There are three ways to calculate the addition of two-digit numbers plus two-digit numbers without carry.

Method 1: Add the tens digit to the tens digit, and add the ones digit to the units digit. Then add the two results.

Method 2: Dial the counter

Method Three: Vertical Column

Students: What is the rule of vertical addition?

Use vertical calculations, and the same digits must be aligned

Summary of the whole lesson

What did you learn from this lesson? Can you tell me something?

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For more information about the "Big Beach" PPT courseware, please click on the Big Beach ppt tab.

"My Family Lives by the Sea" PPT:

"My Family Lives by the Sea" PPT Part One: Preview Check Thinking: 1. Where does my family live described in the text? 2. What is there on the seaside? In fact, many places on our blue earth are covered by sea water. The sea is magnificent and azure...

"Beachside" PPT courseware 3:

"Big Beach" PPT Courseware 3 Two-digit plus two-digit addition without carry Two-digit addition with two-digit carry addition Two-digit subtraction two-digit subtraction without carry 1. The same digits must be aligned 2. Add from each digit (Subtract) from 3. When the ones digit reaches ten, advance one to the tens digit... ... ... ..

"Beachside" PPT courseware 2:

"Big Beach" PPT Courseware 2 Three minutes before class, calculate the train 56+2= 28+20= 12+5= 44+30= 25+4= 71+10= 34+2= 37+40= Independent thinking and communication algorithm 1. Try to solve it yourself. 2. Share your algorithms with your deskmates. 3. Reporting algorithm. ... ....

File Info

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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