Project Work

Preliminary Information :

1. Class     :  7
2. Subject    :  Mathematics
3. Name of the Lesson/Unit :  TRIANGLES AND ITS PROPERTIES
4. No. of the Project   :   

DETAILED INFORMATION OF THE PROJECT 

1.  Title of the Project :  
Classification of triangles based on sides and angles. 

2.  Objectives of the project :  
Identification of types of triangles according to its sides and angles.

3.  Materials used : 
Charts, Geometry box, Card board, Scissors, sketch pens, etc.

4.  Tools : 
(i)  Collection of information  –  Preparation of different types of models of triangles. 
(ii)  Observation –  Comparing the sides and angles.  (iii)  Comparison & Classification –  Classifying the triangles based on sides and angles.  

5.  Procedure :  

1.  Introduction : I want to classify the triangles based on its sides and angles by      preparing all types of triangles. 
2.  Process :  Prepare different types of triangle models by using card board. 
3.  Recording the data – based on sides  
(i)  Measure and record each side of triangle and identify the name of the triangle.  
(ii)  Record & classification of triangles based on sides. 

Recording the data – based on angles
(i)  Measure and record all angles of triangles and identify the name of the triangle. 

(ii)  Record & classification of triangles based on the angles.

4. Analysis :   

(i) I noticed that the triangles are 3 types based on sides, they are

 (ii) I noticed that the triangles are 3 types based on angles, they are

5. Conclusion : 

6. Experiences of the students :
(i)  I prepared scalene triangle very easily.
(ii)  First, I tried to draw an Isosceles triangle but failed 2 times, then I used set squares to draw the isosceles triangle, and then I draw another isosceles triangle without set square.
(iii)  I collected some objects which are in the shape of triangles and I traced it on card board and then prepared models of triangles by cutting the card board to identify the types of triangles according to angles. (iv)  While measuring the sides, I started from 1 instead of 0 for some times on the scale, it leads some wrong results.
(v) While measuring the angles, I measured exterior angles instead of interior angles it leads some wrong results. 

7. Doubts & Questions : 
1.  Is every acute angled triangle is an equilateral triangle and every equilateral triangle is an acute angled triangle?
2.  Is any triangle has more than two acute angles?
3.  Is any triangle has more than one right angle?
4. Is any triangle has more than on obtuse angle?

8. Acknowledgement : 
1.  Convey our sincere thanks to who are cooperate and putting their earnest efforts in completing the project.

9. Reference Books/Resources :   
1. Class – VII Mathematics text book

10. Signature of the student(s) :