1. Geometry
1.1 Let’s Get This Started!

2. Clicker Join Code 13
Name the endpoints of the segment D F B

3. 1.1 Let’s Get Started Points, lines, planes, rays and segments
Objectives
Identify and name points, lines, rays, line segments, and planes
Use symbolic notation to describe points, lines, planes, rays and line segments
Describe possible intersections of lines and planes
Identify construction tools
Distinguish between a sketch, a drawing and a construction

4. 1.1 problem 1 Point, Line, Plane
A location in space. No size or shape.
Line
A straight continuous arrangement of an infinite number of points.
Collaborate 1-4 (1 Minute)
2 points determine a line
Collaborate 5-8 (2 Minutes)
Notice the symbol for line
Double arrow above the letters

5. 1.1 problem 1 Point, Line, Plane
Collinear Points
Points on the same line
Must be three or more points
Plane
A flat surface
Infinite length and width but no depth
3 points determine a plane
Coplanar: On the same plane
Collaborate 9-11 (4 Minutes)

6. 1.1 Problem 2 Creating geometric figures
Compass
Straightedge
Sketch
No Tools
Draw
Use tools to be more exact than a sketch
Construct
Use only a compass and straightedge. No measuring

7. 1.1 Problem 2 Creating geometric figures
Coplanar Lines
Two or more lines in the same plane
Skew lines
Two or more lines not in the same plane
On your own 1-3 (2 Minutes)

8. 1.1 Problem 3: Using Undefined Terms to Define New Terms
Ray
A portion of a line
Starts at a point, endpoint, and extends to infinity
Discuss Together 1-4
Line Segment
Starts and ends at endpoints
Discuss Together 5-10

9. 1.1 Problem 3: Using Undefined Terms to Define New Terms
Congruent line segments
Two or more line segments of equal measure
Numbers are equal
Measurements are equal
Shapes are congruent
Segments are congruent
Discuss Together 11-15

10. Formative Assessment
Individually answer each question to turn in
Collaborate in groups to answer each question
Skills Practice Pg Vocab (1-13) and Problem Set (1-32). Need a ruler. Return before you leave
Answer on the workbook pages
Exit Question:
Pg. 15, circle the answers to the question. Turn in the Talk the Talk before you leave.