Solid Shapes Lesson

Objective:

a. Visualize cube, prism, pyramid, cylinder, cone, and sphere.

b. Describe the parts of a cube, prism, pyramid, cone, cylinder, and sphere.​

c. Differentiate solid figures from plane figures.​

Reference: Mathematics Around Us pp.248-262

Quarter 3-Lesson 7

Drill

Determine the plane figure/shape illustrated by the following objects.

Review

Answer the questions precisely.

Listen to a song that your teacher will play

Practice Exercise 1

Answer the questions. Choose your answer from the choices.

Practice Exercise 2

Identify if the shape is 2D (plane figure) or 3D (solid figure).

Practice Exercise 3

Determine the number of faces, vertices, and edges of the following solid figures.

Space Figures are also called solid figures. They are made of plane figures. They are called 3D or 3-dimensional figures because they have length, width and height.

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Plane figures are 2-dimensional or 2D figures. They only have length and width.​

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Solid figures are concrete but plane figures are not. Plane figures are made up of closed flat figures.​

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A cube is a solid with 6 square faces, 12 edges, and 8 vertices.

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A rectangular prism is a solid with 6 rectangular faces, 12 edges, and 8 vertices.

A pentagonal prism is a prism that has 7 faces (2 pentagonal and 5 rectangular faces), 15 edges, and 10 vertices.

A hexagonal prism is a prism that has 8 faces (2 hexa​gonal and 6 rectangular faces), 18 edges, and 12 vertices.

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​A pyramid is a solid with triangular faces and any polygon for its base. Its number of faces, edges and vertices depends on its polygonal base.

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A cylinder is a solid figure with 2 congruent circular bases that are parallel to each other. It has 3 faces, 2 circular edges, and no vertex.

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A cone is a solid figure with circular base, a vertex outside the base, and a curved surface. It has 2 faces, 1 circular edge, and 1 vertex.

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A sphere has curved surface only.​ It has 1 face, no edge and no vertices.