Introduce the cylinder, introduce the sphere
1.1. Knowledge to remember
a) Cylindrical introduction
Milk cartons are cylindrical in shape
The cylinder has two bases, two equal circles and one surrounding face.
b) Sphere Introduction
1.2. Solve textbook exercises page 126
Lesson 1 Textbook page 126
Which of the following figures is a cylinder?
Looking at the figure, we see that Figure A and Figure E are cylinders.
Lesson 2 Textbook page 126
Which of the following objects is spherical?
Looking at the figure, we see that the ping pong ball and the marble are spherical in shape.
Lesson 3 Textbook page 126
Name some objects of the form:
a) Cylindrical; b) Spherical.
a) Some cylindrical objects are: Milk cartons, sewer pipes, water tanks, soft drinks cans…
b) Some spherical objects are: soccer ball, ping pong ball, marble, globe, snooker ball…