co math 5 2nd.pptddddd nmathematics and science

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1. Math 4 3rd QUARTER (Week 2) ALICIA C. SABALLA Grade 4 Math Teacher

2. Describes the attributes/properties of triangles and quadrilateral using concrete objects or models Competency:

3. DRILL: Identifying the kinds of angle represented by each of the following figure.

4. Study the Following Object presented:

5. A TRIANGLE is a simple closed curve or polygon which is created by three line segments. A triangle is a shape or a part of two dimensional space. It has three straight sides and three vertices. The three angles of a triangle always add up to 180 degrees. It is polygon with the least possible number of sides. A POLYGON is a closed figure made up of several line segments that are joined together. The line segments are called sides and do not cross each other. There are exactly two sided that meet at a point.

6. Direction: Read and Analyze. Mr. Garcia bought an illustration board for his Math class. He needs two triangles of the same size without wasting any part of the illustration board. How will he divide it?

7. Study the following figures:

8. A QUADRILATERAL is a polygon with 4 sides, 4 vertices and 4 angles. Can a quadrilateral can be divided into two triangles? Any quadrilateral can be divided into two triangles as shown in the images below.

9. Activity Directions: Beside the number, put a circle on the quadrilateral and box on the triangle. If it is not quadrilateral or a triangle, leave it blank.

10. Assessment Directions: Answer the following questions. Write the letter of the correct answer on a sheet of paper. 1. Which property allows you to name a quadrilateral? A. five sided figure C. three sided figure B. four sided figure D. two sided figure 2. Which of the following is not a polygon? A. quadrilateral C. semi-circle B. pentagon D. pentagon 3. How many sides a triangle have? A. three B. four C. five D. six 4. What is the sum of the interior angle in a triangle? A. 90 B. 180 C. 220 D. 360 5. What is a polygon? A. A closed figure made up of crossed line segments B. A closed figure made up of straight line segments C. An open figure made up of crossed line segments D. An open figure made up of straight line segments

11. Assignment Directions: Draw an object with four angles and three angles.

12. THANK YOU!