Table of COntents
Introduction – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 3
Format of Books – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 4
Suggestions for Use – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 7
Annotated Answer Key and Extension Activities – – – – – – – – – – – 9
Reproducible Tool Set – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 176
ISBN 978-0-8454-8873-7
Copyright © 2016 The Continental Press, Inc.
Excepting the designated reproducible blackline masters, no part of this publication may be reproduced
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without
the prior written permission of the publisher. All rights reserved. Printed in the United States of America.
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25 Solid Figures
Pages
201 and 202
Objective
To identify cubes, spheres, prisms, pyramids, cones,
and cylinders
PAR
T
1 Introduction
Introduction
Introduce solid figures and discuss the difference
between solid figures and plane figures. Have students
look at the different solid figures on the student book
page. Using the examples, identify a rectangular
prism and a rectangular pyramid. Be sure students
understand that prisms and pyramids can have any
polygon as a base. Find examples of other prisms and
pyramids.
Think About It
Students should be able to identify solid figures they
see in real life.
Indiana Academic Standard
3.G.1 Identify and describe the following: cube,
sphere, prism, pyramid, cone, and cylinder.
Connections to Process Standards
for Mathematics
A
rectangle
triangle
B
triangle
triangle
• Model with mathematics.
• Attend to precision.
• Look for and make use of structure.
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PAGES
203 AND 204
LESSON
25 Solid Figures
PAR
T
2 Focused
Instruction
Focused
Instruction
First, students will identify a triangular prism and
a triangular pyramid. Students will recognize the
difference between a prism and a pyramid and
understand that they are named based on the shape
of their base(s).
Next, students will find the number of edges and
vertices on a cube. They should be able to recognize
edges and vertices in an image of a figure and count
them.
cube
the places where the faces meet
12
the corners where the edges meet
Conclude the Focused Instruction section by having
students answer two questions about solid figures.
8
no
sphere
circle
PAR
T
Practice
Guided
Practice
3 Guided
Students should complete the Guided Practice section
on their own. Offer assistance as needed, pointing out
the reminder and hint boxes along the right side of
the page.
rectangular
prism
cylinder
sphere
cube
The cereal box is a rectangular prism because it has rectangles
as its bases. The cat food can is a cylinder because it has circles
as its bases. The orange is a sphere because it is round like a
ball. The tissue box is a cube. It has squares for all its faces.
6
sphere
Extension Activity
Have each student bring in an item in the shape of
one of the solid figures in the lesson. Each student
should show his or her item to the class and explain
how he or she knows what solid figure the item
is. Take pictures of the items and create a bulletin
board with the real-life examples of solid figures.
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LESSON
25 Solid Figures
PAGES
205 AND 206
PAR
T
Practice
I ndependent
Practice
4 Independent
Answer Rationales
1
A pyramid has triangles for sides. The base can be
any polygon. The triangular sides meet at a point.
Choices A and C show prisms. Choice B shows
a cylinder and choice E shows a cone. These are
all incorrect. Choice D is a triangular pyramid and
choice F is a pentagonal pyramid. Choices D and F
are correct.
2
The hexagonal prism has 2 bases that are hexagons
and 6 sides that are rectangles, so it has 8 faces in
all. The faces are connected at the edges. Count the
places where the faces connect; there are 18 edges.
The vertices are the corners on the shape. There are
6 vertices around the bottom base and 6 around the
top, for 12 in all.
3
Parts A and B There are a number of similarities
and differences between the two shapes. Both are
prisms, so they both have two bases. Their sides
are rectangles. The number of sides depends on
the shape of the bases. In addition, the number of
vertices, edges, and faces on each shape is different.
4
The solid figure has two circular bases. The bases
are connected by a round edge. This shape is a
cylinder.
DOK 2
3.G.1
DOK 2
3.G.1
DOK 3
3.G.1
Answers may vary: They both have two bases.
Answers may vary: The rectangular prism has six faces.
The triangular prism has five faces.
DOK 1
3.G.1
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PAGE
207
LESSON
DOK 2
3.G.1
25 Solid Figures
5
The four towers on the corners of the castle
are cylinders. They have two circular bases. The
two towers in the rear have cones on top of the
cylinders. A cone has one circular base and a curved
surface that makes a point.
6
A sphere is a ball shape. It is round and has no
edges, faces, or vertices.
2
4
sphere
DOK 1
3.G.1
Vocabulary
base: the bottom and top of a solid figure
cone: a solid figure with a base that is a circle and a
curved surface that forms a point
cube: a rectangular prism with squares for sides and
bases
cylinder: a solid figure with two bases that are
circles and that are connected by a round surface
edge: where two faces meet on a solid figure
face: sides and bases of a solid figure
prism: a solid figure that has rectangles for sides
and two polygons for bases
pyramid: a solid figure that has triangles for sides
and one polygon for a base
rectangular prism: a prism with rectangles for bases
rectangular pyramid: a pyramid with a rectangle
for a base
solid figure: a figure with length, width, and height
sphere: a solid figure shaped like a ball
vertex: the place where edges meet in a solid figure
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