Math 8 Lesson Plan 69G Cross Section of a Figure class outline.doc

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Sewanhaka High School
Math 8
Class:______________
Mrs. Lidowsky, Principal
Mr. Long, Teacher
Date:____________________
Name:______________________
H.W. #69G: Ditto
DO-NOW #69G: Answer the following questions:
1) Draw a top, a side, and a front view of the following figure:
2) Which one doesn’t belong? Identify the figure that does not have the same characteristic as the other three.
Explain your reasoning.
Topic: Geometry
Main Idea: Cross Section of a Solid
Aim:
RECALL
TERMINOLOGY TO BE FAMILIAR WITH:
Prisms have flat surfaces.
The surfaces of a prism are called faces.
The faces meet to form the edges of the prism.
The edges meet at corners called vertices.
All prisms have at least one pair of faces that are parallel
and congruent. These are called bases and are used to
name the prism.
A pyramid is a solid that has a polygon for a base and
triangles for sides. It is named according to its base.
The intersection of a solid and a plane is called a
cross section of the solid.
Drill: Work on Three Dimensional Figures Worksheet.
Summary:
NOTES
Sewanhaka High School
Math 8
Class:______________
Name:______________________
Mrs. Lidowsky, Principal
Mr. Long, Teacher
Date:____________________
THREE DIMENSIONAL
FIGURES WORKSHEET
Directions: Examine each of the following three dimensional figures. Determine:
a) how many faces (if any) make up each figure and the shapes and names of the faces and base.
b) how many edges (if any) and vertices (if any) form each figure.
c) the measurements of each figure with the use of a ruler in inches. Write the measurements on the outside
of the figure.
d) the name of each figure.
Question before you begin: What do the dashed lines on the figure represent?
___________________________________________________________________________________
B
J
C
H
A
K
1
L
I
E
2
D
F
M
G
N
4
P
3
Q
S
Figure #1
a) Number of faces = ________
b) Shapes of the faces and base: (include names)
_____________________________________________
_________________________________
c) Number of edges = __________
d) Number of vertices = ___________
e) Name of figure:________________________
R
5
T
Figure #4
a) Number of faces = ________
b) Shapes of the faces and base:
_____________________________________
_____________________________________
____
c) Number of edges = __________
d) Number of vertices = ___________
e) Name of
figure:________________________
Figure #2
a) Number of faces = ________
b) Shapes of the faces and base: (include names)
_____________________________________________
_________________________________
c) Number of edges = __________
d) Number of vertices = ___________
e) Name of figure:________________________
Figure #3
a) Number of faces = ________
b) Shapes of the faces and base: (include names)
_____________________________________________
_________________________________
c) Number of edges = __________
d) Number of vertices = ___________
e) Name of figure:________________________
Figure #5
a) Number of faces = ________
b) Shapes of the faces and base:
_____________________________________
_____________________________________
____
c) Number of edges = __________
d) Number of vertices = ___________
e) Name of
figure:________________________
Page 2
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