PH Lesson 1-4 segments, rays, planes.notebook
September 23, 2016
LT: I will learn the basic terms of geometry EQ: What is the difference between
lines, segments, and rays ?
previous assignment
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PH Lesson 1-4 segments, rays, planes.notebook
September 23, 2016
Basic geometric terms
term
segment
ray
defini on
symbol/picture
part of a line having two endpoints
a line with a single endpoint (or point
of origin) that extends infinitely in one
direc on.
AB
AB
A
B
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PH Lesson 1-4 segments, rays, planes.notebook
term
defini on
opposite rays
two collinear rays with the same
endpoint.
Opposite rays always form a line.
parallel lines
coplanar lines that do not intersect.
September 23, 2016
symbol/picuture
B
skew lines
non-coplanar lines that do not intersect
A
C
D
F
E
G
H
AB and EH are skew lines
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PH Lesson 1-4 segments, rays, planes.notebook
term
parallel planes
defini on
September 23, 2016
symbol/picture
planes that do not intersect.
ABH and DCI are parallel planes
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PH Lesson 1-4 segments, rays, planes.notebook
September 23, 2016
Lesson presenta on: naming segments, rays, parallel lines, planes
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PH Lesson 1-4 segments, rays, planes.notebook
September 23, 2016
I know the meanings of line, line segment, ray, parallel
lines, parallel planes, and skewed lines, and can name
segments, rays, and planes geometrically.
Assignment: Lesson 1-4 pg. 23-28; #1-16, 39, 40,
51-58
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PH Lesson 1-4 segments, rays, planes.notebook
September 23, 2016
Experiment with transformaƟons in the plane
1. Know precise defini ons of angle, circle, perpendicular line, parallel line, and line
segment, based on the undefined no ons of point, line, distance along a line, and
distance around a circular arc.
Make geometric construcƟons
12. Make formal geometric construc ons with a variety of tools and methods (compass and
straightedge, string, reflec ve devices, paper folding, dynamic geometric so ware, etc.).
Copying a segment; copying an angle; bisecƟng a segment; bisecƟng an angle; construcƟng
perpendicular lines, including the perpendicular bisector of a line segment; and construcƟng
a line parallel to a given line through a point not on the line.
13. Construct an equilateral triangle, a square, and a regular hexagon inscribed in a circle.
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PH Lesson 1-4 segments, rays, planes.notebook
September 23, 2016
LT: I will learn the basic terms of geometry
EQ: What is the difference between lines, segments, and rays ?
3 min: entry task: name planes
8 min: vocabulary terms
8 min: examples
5 min: quick quiz
20 min: exercises
1 min: close
Assignment: Lesson 1-4 pg. 23-28; #1-16, 39, 40,
51-58
home
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PH Lesson 1-4 segments, rays, planes.notebook
85
September 23, 2016
86
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