# Lesson Notes By Weeks and Term - Senior Secondary 1

Development 2

TERM – 3RD TERM

WEEK FOUR

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 5 periods each

Date:

Subject: Technical Drawing

Topic: DEVELOPMENT 2

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

I.) Develop a prism and a cylinder using parallel lines methods.

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 explains the parallel lines methods of developing prisms and cylinders Students listens attentively to the teacher STEP 2 EXPLANATION Teacher guide students to develop prisms and cylinders using parallel lines methods. Students exhibit attentiveness and active engagement STEP 3 NOTE TAKING The teacher writes a summarized note on the board The students copy the note in their books

NOTE

DEVELOPMENT 2

Development of prisms and cylinders.

Prisms and cylinders are fundamental geometric shapes studied and  used in various fields, including architecture, engineering, and physics

Parallel lines methods

The Parallel Lines Method is a geometric construction technique used to develop prisms and cylinders. It involves drawing parallel lines at equal intervals on a plane surface and then connecting corresponding points with lines perpendicular to the parallel lines to create the sides of the prism or cylinder.

1. For prisms, the parallel lines represent the bases, and the perpendicular lines represent the lateral faces. By connecting the corresponding points on the bases with the perpendicular lines, you can create the sides of the prism.

2. For cylinders, the parallel lines represent the bases, and the perpendicular lines represent the lateral surface. By connecting the corresponding points on the bases with the perpendicular lines, you can create the curved surface of the cylinder.

This method allows for the visualization and construction of these geometric shapes in a systematic way, making it easier to understand their properties and relationships.

EVALUATION: 1.  The figure below shows a cone intersecting a cylinder at right angle.

Draw the: plan, curve of intersection, surface development of the cylinder, making PQ the seam. (WAEC)

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively