Home
Content Index
Assessments
Textbook Support
Bibliography
About Countdown
Contact Us
Algebra - Equations & Graphing
Guess & Check
Coin Riddles: Guess & Check
Solving Coin Riddles: Part 1
Solving Coin Riddles: Part 2
Writing Coin Riddles
Equation Basics
Addition Property of Equality
Using the Addition Property of Equality
Addition Property of Equality: Word Problem
Intro to Truth Tables: Primary Grades
Intro to Truth Tables & Graphing
Intro to Y Intercept & Slope
Graphing Inequalities
Vocabulary: Graphing Lines
Comparing Slopes
Using y=mx+b: Runner 1
Using y=mx+b: Runner 2
Graphing: y=2/3 + 0
Graphing: y=3/2 + 0
Graphing: y=2x+0; y=3x+0