เอกสารสอนคณิตศาสตร์เพิ่มเติมเป็นภาษาอังกฤษ ระดับชั้นม.1 เรื่องแทนแกรม จัดทำโดย ครูทรรศนีย์ รัตนวิจิตร โรงเรียนสมุทรปราการ

1. M20201 the first semester of the 2010 academic year SAMUTPRAKAN SCHOOL
Name ……………………………………….…………….. Class ………………….. No ……….
1.3 Tangram
Direction: Answer the Question.
1. How many pieces of tangram? ........................................................................................
2. Which pieces are right angle triangles? ……………………………………………………..
3. Which pieces are square? …………………………………………………………………….
4. Which pieces are parallelogram? ……………………………………….……………………
5. Which pieces have equal area? ………………………………………………………………
6. How many area of piece 1 per area of total ? ……………………………………………….
7. How many area of piece 7 per area of piece 1 ? …………………………………………..
8. How many area of piece 7 per area of total ? ……………………………………………….
9. How many area of piece 3 per area of piece 4 ? …………………………………………..
10. How many area of piece 3 per area of piece 6 ? …………………………………………
11. How many area of piece 4 per area of piece 6 ? …………………………………………
12. If area of piece 1 equal to 4, What is area of total? ……………………………………….
Conclusion
Let area of piece 3 equal to 1, so you will get area of each piece equal to
Piece 1 : Piece 2 : Piece 3 : Piece 4 : Piece 5 : Piece 6 : Piece 7
= .….. : .…… : 1 : ..….. : ..….. : …… : .……
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2. M20201 the first semester of the 2010 academic year SAMUTPRAKAN SCHOOL
Name ……………………………………….…………….. Class ………………….. No ……….
1.3 Tangram
Direction: Answer the Question.
1. How many pieces of tangram? (7 pieces)
2. Which pieces are right angle triangles? (1, 2, 3, 5, 7)
3. Which pieces are square? (4)
4. Which pieces are parallelogram? (6)
5. Which pieces have equal area?
(piece 1 = piece 2, piece 3 = piece 5, piece 4 = piece 6 = piece 7)
6. How many area of piece 1 per area of total ? ( 1 : 4 )
7. How many area of piece 7 per area of piece 1 ? ( 1 : 2 )
8. How many area of piece 7 per area of total ? ( 1 : 8 )
9. How many area of piece 3 per area of piece 4 ? ( 1 : 2 )
10. How many area of piece 3 per area of piece 6 ? ( 1 : 2 )
11. How many area of piece 4 per area of piece 6 ? ( 1 : 1 )
12. If area of piece 1 equal to 4, What is area of total? (16)
Conclusion
Let area of piece 3 equal to 1, so you will get area of each piece equal to
Piece 1 : Piece 2 : Piece 3 : Piece 4 : Piece 5 : Piece 6 : Piece 7
= 4 : 4 : 1 : 2 : 1 : 2 : 2
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