"Comparing the sizes of numbers within 20" PPT courseware for understanding each number from 11 to 20 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
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Authoritative PPT Summary
"Comparing the sizes of numbers within 20" PPT courseware for understanding each number from 11 to 20
teaching objectives
1. Through guessing, communication and other mathematical activities, learn about the numbers between 11 and 20.
2. Go through the process of comparing the size of the quantity to the size of the number and expressing it with symbols, and can compare the size of the numbers within 20.
3. Encourage students to actively participate in mathematics activities and cultivate their initial number sense.
Compare.
I have 15 yuan.
I have 18 yuan.
Who has more? Who is less?
1. Red ones have less sugar than Congcong ones. 15＜18
2. Congcong has more candies than Honghong. 18>15
give it a try
Put ＞ or ＜ in ○.
10○12 18○17 20○13
14○8 16○20 12○2
practice
1. Count and compare.
2. Write a number that is greater than 10 and less than 17.
3. Count and fill in.
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