Western Normal University Edition First Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 1
People's Education Press First Grade Mathematics Volume 1
People's Education Press Second Grade Mathematics Volume 1
People's Education Press Third Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 1
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
People's Education High School Mathematics Edition B Compulsory Course 2
Hebei Education Edition Seventh Grade Mathematics Volume 2
Hebei Education Edition Fourth Grade Mathematics Volume 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
Category | Format | Size |
---|---|---|
Qingdao Edition Second Grade Mathematics Volume 1 | pptx | 6 MB |
Description
"Watching Acrobatics" PPT Courseware 4
learning target
1. On the basis of existing knowledge and experience, explore ways to compile the multiplication formula for 2.
2. Initially learn to use the multiplication formula of 2 to solve simple practical problems.
3. Cultivate the spirit of exploration and innovation.
think about it
(2) people on 1 pole are (1) (2), the multiplication formula is (1×2=2) or (2×1=2);
There are (4) people on 2 poles, which is (2) (2), and the multiplication formula is (2×2=4);
There are (6) people on 3 poles, which is (3) (2), and the multiplication formula is (3×2=6) or (2×3=6);
There are (8) people on 4 poles, which is (4) (2), and the multiplication formula is (4×2=8) or (2×4=8);
There are (10) people on 5 poles, which is (5) (2), and the multiplication formula is (5×2=10) or (2×5=10);
Can you summarize the multiplication formula for 2 the same way you summarize the multiplication formula for 5?
What we found:
2 people on 1 pole 1 2 1×2=2 or 2×1=2
Mantra: One or two gets two
4 people on 2 poles, the sum of 2 2s (2+2=4) 2×2=4
Rhythm: Two-two makes four
6 people on 3 poles, the sum of 3 2s (2+2+2=6) 3×2=6 or 2×3=6
Formula: two, three, six
8 people on 4 poles, the sum of 4 2s (2+2+2+2=8) 4×2=8 or 2×4=8
Formula: Two to four makes eight
10 people on 5 poles, the sum of 5 2s (2+2+2+2+2=10) 5×2=10 or 2×5=10
Formula: two five ten
Compare one to one
One or two (get two)
Two two (get four)
Two or three (get six)
Twenty-four (get eight)
Twenty-five (ten)
Compare one to two
( ) gets two
( ) gets four
( ) gets six
( ) gets eight
( )ten
application
Thinking: To solve this problem, what should we find out first?
How many red lanterns are there in total on the stage?
Compliance testing
Deskmate check:
Recite the multiplication table of 2 and see who can recite it correctly and quickly!
Talk about harvest
What did you gain from studying this class? Tell everyone!
Keywords: Watch acrobatics teaching courseware, Qingdao version second grade mathematics volume PPT courseware download, second grade mathematics slide courseware download, watch acrobatics PPT courseware download, .PPT format;
For more information about the "Watch Acrobatics" PPT courseware, please click the "Watch Acrobatics ppt" tab.
"Watch Acrobatics" PPT courseware 3:
"Watching Acrobatics" PPT Courseware 3 What mathematical information is provided in the picture? Red scarf 5 2s 5 cars 2 wheels each 5 people on each car Red lanterns 4 2s Yellow lanterns 4 5s Compile formulas with the help of children's songs, it is more convenient to use formulas to calculate multiplication. 1 car with 2 wheels, on...
"Watch Acrobatics" PPT courseware 2:
"Watching Acrobatics" PPT Courseware 2: One person has a pole above his head, and two people on the pole are spinning in circles. Two people hold two poles above their heads, and four people on the poles rotate in circles. Three people have three poles above their heads, and six people on the poles are spinning in circles. Four people have four poles above their heads, and people on the poles are spinning in circles. Five people have five poles on their heads, and the poles...
"Watching Acrobatics" PPT courseware:
"Watch Acrobatics" PPT courseware review 3+3+3+3= ( )X ( ) 5+5+5+5+5+5= ( )X ( ) 7+7+7= ( )X ( ) 6+ 6+6+6+6= ( )
File Info
Update Time: 2024-10-19
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