| Category | Format | Size |
|---|---|---|
| Qingdao Edition First Grade Mathematics Volume 2 | pptx | 6 MB |
"Green Action" PPT Courseware 2
1. Situation introduction
The first grade exhibits 9 pots of flowers.
The second grade students exhibited 30 pots of flowers.
The third grade students exhibited 38 pots of flowers.
Eight of our second grade students came.
There are 24 people from our third grade class.
Based on this information, are there any questions you can ask?
What mathematical information do you know from the picture?
2. You tell me and I tell you.
How many more potted flowers are displayed in the second grade than in the first grade?
30 - 9 = (pot)
10 - 9 = 1
20 + 1 = 21
3. Independent practice
1. Stick game.
If you take away 9 sticks, how many bundles and sticks are left?
How did you get it?
2. Which leaf is sick?
Think about it: What is the difference in calculation when the units digit is enough to be subtracted or not to be subtracted?
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For more information about the "Green Action" PPT courseware, please click the Green Action ppt tab.
"Green Action" PPT courseware 7:
"Green Action" PPT Courseware 7 You tell me, how many did dad and mom pick in total? Think about how to list the calculation formula? Do the math. 40+30 = 70 (pieces). Count it. I count like this, 50, 60, 70. 4 tens plus 3 tens, we get 7 tens, which is 70... ... ... One,...
"Green Action" PPT courseware 6:
"Green Action" PPT Courseware 6 How many signs should be hung in a class? Combine the 27 signs that have been hung up and the 6 that have not been hung up. 27+6=33 (pieces) 7+6=13 20+13=33 ... ... ... I can do it 55+6＝ 74+8＝ 42+9＝ 23+8＝ 9+45＝ 23+..
"Green Action" PPT courseware 5:
"Green Action" PPT courseware 5 Oral answer: The three tens are ( ). 3. One is ( ). The sum of 8 tens and 4 ones is ( ). There are ( ) tens and ( ) ones in 4 5. 60+2= 30+4= 60+20= 30+40= ... ... ... Liangliang and Dong...
Update Time: 2024-07-04
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