"Add a few to 9" Addition within 20 PPT courseware 2

Description

"Add a few to 9" Addition within 20 PPT courseware 2

teaching objectives

1. Combined with the problem situation, experience the process of hands-on operation, calculation using your own method, and communication of personalized algorithms.

2. Be able to correctly calculate the number of additions to 9 and understand the method of "making ten".

3. Be willing to communicate your own algorithms with others and experience the diversity of algorithms.

9+1=10

9＋1＋1＝11

9＋1 ＋1 ＋1＝12

9＋1 ＋1 ＋1 ＋1＝12

9＋1 ＋1 ＋1 ＋1 ＋1＝14

9＋1 ＋1 ＋1 ＋1 ＋1＋…＝

Tell me, what patterns have you discovered?

practice

1. Go around in a circle and do the math.

9 + 2 =11

9 + 4 =13

2. Look at the picture and write the formula.

9+5=14

7+9=16

3. Fill it out.

4. Do the math.

9 + 3 = 9 + 9 =

9 + 4 = 6 + 9 =

9 + 8 = 10 + 9 =

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For more information about the PPT courseware "Add 9 and add a few within 20" PPT courseware, please click the Addition within 20 ppt9 and add a few ppt tags.

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Update Time: 2024-10-16

This template belongs to Mathematics courseware Hebei Education Edition First Grade Mathematics Volume 1 industry PPT template

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