Lesson Plan

Lesson Plan in Mathematics

I. Objectives

At the end of the discussion, 90% of the Grade 7 students would be able to: of the Grade students are expected to:

A. Solve for the area of triangle

B. Appreciate the ways of solving area of triangle.

C. Write solution in finding the area of a triangle.

II. Subject Matter

A. Topic: Area of Triangle

B. Reference: http://www.mathgoodies.com/lessons/vol1/area_triangle.html

C. Materials:

III. Procedure

A. Preparation

1. Review

Review the definition of literal equation and provide review exercises.

B. Developmental Activities

1. Motivation

I have a friend named Mr. T. He is looking for his relatives. Will you help him find his relatives in the amusement park?

His relative has the same shape as his.

What is his shape?

What does a triangle look like?

How man sides/angles do triangles have?

Can you find Mr. T’s relatives?

What can you say about the sizes/measurement of the triangles posted on the board?

Then, it only means there are different kinds of triangles.

2. Presentation

3. Discussion

Triangles with different length sides may have the same area. The area of a triangle is dependent only on the length of its base and on its perpendicular height.

How can we calculate the area of a triangle from this information?

Calculating the area of a triangle

Base and Height

We can choose any side of a triangle as the base. For convenience, the same word (base) is used to denote the length of this side. Once a base has been chosen there is only one perpendicular height relative to this base; this is the straight line perpendicular to the base passing through the opposite apex.

the formula for the area of a triangle is: |

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Where  is the base,  is the height and · means multiply. A. Formula...