Introductory Concepts and Definitions

Pacing Guide for Geometry
The Right Angle -- Definitions
Scrabble Puzzle with Vocabulary
Geometric Figures -- Puzzle (Matchboxes)
Square Abouts Puzzle (Geometry Words)
Scramblegories -- Geometry Words
Symmetry Activity with the Digital Camera
How Many?
The Story of Joe Sine
The Geometrical Romance of Miss Poly Hedron
Geometry "Definitions"
Geometry Tag-A-Long
Watch Your Language! -- Geometry Words
Congruence Puzzle
Emergency Lesson Plans -- Sudoku Puzzles



Angles and Triangles

Find The Bingo -- Angles
Color the Triangles
Count the Triangles
Find The Star (Congruent Triangles)
Find The Star #2 (Congruent Triangles)
Worksheet on Congruent Triangles
The Platonic Solids



Ratio and Proportion

Similarity Project
Similar Figures Puzzle
Proportional Drawing
Ratio and Proportion Puzzle
Ratios of TV Screens
The Golden Ratio
The Golden Ratio (50 most beautiful buildings in the world)
Solving Proportions -- Silly Sally Seal



Quadrilaterals

What's My Shape?
Tangram Activity with Quadrilaterals
The Quadrilateral Family
Hidden Meaning -- Quadrilaterals
The Vertex Connection
Tangram Geometry
Perfect Squared Square
Parallelogram Game



Circles

Facts about Pi
Circle Worksheet
Droodle For Polygons, Circles, & Right Angle Trig
Angles in Circles -- Summary
Slot Car Racing (Application of Circumference)
Turvy #10 -- Geometry -- Angles in Circles
Droodle #14 -- Geometry -- Angles in Circles
Op Art (Circles)



Areas and Volumes

Droodle For Review of Area
Areas of Geometric Figures (Cut-out Activity)
Droodle For Area of Polygons
Area and Perimeter
Areas of Quadrilaterals and Triangles
Wrecked Angle -- Area
Hidden Message for Cylinders, Pyramids, and Cones
Maze for Prisms



Pythagorean Theorem

Did the Scarecrow Really Get a Brain?
The Spider and The Fly (Pythagorean Theorem)
Pythagorean Triples
Pythagorean Theorem Game
Pythagorean Triples with the same Area



Parallel Lines

Pool Table Geometry
Eratosthenes and Parallel Lines



Conditional Statements and Proofs

Conditional Statements
Conditional Statements in Advertising
Conditional Statements with Song Lyrics
Converse, Inverse, and Contrapositive
More Conditional Statements
And More Conditional Statements
If there is righteousness in the heart
Sillygisms
Direct TV Ads -- "Proofs" (words)
Direct TV Ads -- "Proofs" (videos)
Indirect Proof (Sherlock Holmes)
Truth Tables (Sherlock Holmes)
Indirect Proof (Christmas Gifts)



Graphs and Analytic Geometry

Battleship Game
Plotting Points
Slope Racing Game
Four in a Row
A Geometric Heart!
Graph Paper for Tests
Class, Take Your Seats! -- Slopes / Midpoints / Lines
Class, Take Your Seats! -- Analytic Geometry (Problem Solving)
Graphing Linear Equations (Picture)
Graphs of interior and exterior angles
Proofs with Analytic Geometry



Trig Ratios in a Right Triangle

Mnemonics for the trig ratios (SOHCAHTOA)
Legend of SOHCAHTOA by Dane R. Camp
The 45 Degree Angle
The 30 Degree Angle
Trig Cut Ups
Right Triangle Trig Applications (A Turvy)
More Right Triangle Trig Applications



Geometrical Recreations

Holiday Math
Four Color Problem
Tangram Activities
Tessellations -- Escher Art
Tessellations -- Discovery of the 15th Pentagonal Tessellation
Optical Illusions
Stereograms
Origami
Impossible Figures
Film Posters Based on Geometry
Graph Theory and the Konigsberg Bridge Problem
Inscribing A Pentagon
The Perfect Way to Cut a Pizza



Final Exam Review

Droodel #17 -- Final Exam Review