1. Created by: Sharon Moore
Geometry
Created by:
Sharon Moore

2. A point has no length or width, it just specifies an exact location.
A line is a series of points that extend forever in both directions.

3. A line segment does not extend forever, but has two distinct endpoints.
A ray begins at a certain point and extends forever in one direction.

4. Parallel Lines
Intersecting Lines
Perpendicular Lines

5. ANGLES CAN YOU LABEL EACH ONE?
right
acute
acute
obtuse
acute
acute

6. Polygon 411: Names and Numbers
Triangle
Rectangle
4 sides
4 angles
4 points
Square
3sides, 3 angles, 3 points
4 sides, 4 angles, 4 points
Pentagon
Octagon
6 sides
6 angles
6 points
Hexagon
8 sides, 8 angles, 8 points
5 sides, 5 angles, 5 points

7. Circles
A circle is: “the set of all points” that are a fixed distance from a central point".
The radius is the distance from the center to the edge.
The Circumference is the distance around the edge of the circle.

8. Circles cont.
A line that goes from one point to another on the circle's circumference is called a Chord.
If that line passes through the center it is called a Diameter.
If a line "just touches" the circle as it passes it is called a Tangent.
And a part of the circumference is called an Arc.

9. Triangles: Sides and Angles
Isosceles
Equilateral
Three equal angles
No equal sides
No equal angles
Two equal sides
Two equal angles
Three equal sides
Scalene
Obtuse
Right
Acute
Has an angle more than 90°
Has a right angle (90°)
All angles are less than 90°

10. Quadrilaterals: 4 sided shapes

11. Does a shape change if you move it?
Rotation Turn!
Reflection Flip!
Translation Slide!

12. NO! In Geometry, "Translation" simply means moving.
Check out this website and see for yourself.
Alphabet Geometry: Flips, Slide, Turn

13. Symmetry Are you symmetrical?

14. Coordinate Grids
Mathwire.com | Coordinate Geometry

15. Geometric Solids Name of solid # of edges # of vertices # of faces
Name(s) of faces
cone 1
circle
cylinder 2
sphere
n/a
cube 12 8 6
square
rectangular prism
rectangle square
pyramid 5
triangles square

16. Geometry Unit Calendar
DAY Introduction to Geometry: Points, Rays, Line Segments, Lines, Angles
DAY Intersecting, Parallel and Perpendicular Lines
DAY Angles: Acute, Right, and Obtuse
DAY Dimensional Shapes Square, Rectangle, Triangle, Hexagon
DAY Polygons: Names and Numbers
DAY Is it or is it not a polygon? Circles: radius, diameter, chord
DAY Triangles: Acute, Right, Obtuse, Scalene, Isosceles, Equilateral
DAY Quadrilaterals: Square, Rectangles, Parallelogram, Trapezoid, Rhombus
DAY Motions: Flip, Slide & Turn Similar vs. Congruent
DAY Are you symmetrical? Lines of symmetry
DAY Using Geometry: Mapping points on coordinate grids
DAY Using Geometry: Turn 2D shapes in 3D solids
DAY Analyze 3-dimensional solids: edge, vertex, and face
DAY Review Geometry Unit
DAY Assessment