TERM – 2^{ND} TERM
WEEK NINE
Class: Senior Secondary School 1
Age: 15 years
Duration: 40 minutes of 5 periods each
Date:
Subject: Technical Drawing
Topic: EQUAL AREA OF FIGURES II
SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to
I.) Construct figures with equal area
INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source
INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,
INSTRUCTIONAL PROCEDURES
PERIOD 1-2
PRESENTATION |
TEACHER’S ACTIVITY |
STUDENT’S ACTIVITY |
STEP 1 INTRODUCTION |
The teacher guide the students to construct figures with equal area. |
Students listens attentively to the teacher and actively participate |
STEP 2 NOTE TAKING |
The teacher writes a summarized note on the board |
The students copy the note in their books |
NOTE
EQUAL AREA OF FIGURES II
Example 1: Construct a rectangle equal in area to the triangle ABC.
Procedure
Example 2: Construct a triangle equal in area to a given regular polygon
Procedure
Example 3: Construct a triangle equal in area to a given polygon with an interior angle greater than 180⁰
Procedure
EVALUATION: 1. An irregular pentagon PQRST has the following properties: PQ = TS = 60; QR = 50; PT = 40; angles PQR = 30O ; QPT = 100O; PTS = 120O.
Construct the full size of the pentagon.
(i) Convert the triangle to a square of equal area.
(ii) State the lengths of the base and height of the triangle.
(iii) Convert the pentagon to triangle.
(iv) State the lengths of the side of the square.
Construct the full size of the pentagon.
CLASSWORK: As in evaluation
CONCLUSION: The teacher commends the students positively