A work in progress, CK-12's Algebra I Second Edition is a clear presentation of algebra for the high school student. Topics include: Equations and Functions, Real Numbers, Equations of Lines, Solving Systems of Equations and Quadratic Equations.

CK-12 Foundation's Basic Algebra FlexBook is an introduction to the algebraic topics of functions, equations, and graphs for middle-school and high-school students.

An explanation of how to determine the equations of a line. [Algebra: Lesson 11 of 86]

How to solve equations with the variable on both sides of the equation. [Algebra: Lesson 3 of 86]

An introduction to calculating the slope of a line. [Algebra: Lesson 8 of 86]

This continues the discussion of how to determine the slope of a line. [Algebra: Lesson 9 of 86]

A demonstration of calculating the slope of a line. [Algebra: Lesson 10 of 86]

An explanation of how to understand slope and the y-intercept. [Algebra: Lesson 7 of 86]

An introduction to graphing linear equations. [Algebra: Lesson 6 of 86]

An introduction to basic algebraic equations of the form Ax=B. [Algebra: Lesson 1 of 86]

An introduction to slightly more complicated equations. [Algebra: Lesson 2 of 86]

Demonstration of solving linear equations with variable expressions in the deominators of fractions. [Algebra: Lesson 4 of 86]

Demonstration of how to solve linear inequalities. [Algebra: Lesson 5 of 86]

The resources highlighted here aim to reflect students' growing mathematical capacity over the span of the middle school years. The activities and lessons, intended as supplementary materials, range from introduction to the fundamentals of algebra to work on linear functions. Uniformly, they take into consideration the preference of the middle school student for concrete models, visual representations, and interactive tasks.

This arithmetic lesson discusses time zones and how to calculate flight times across time zones. [Arithmetic playlist: Lesson 37 of 38]

This arithmetic lesson demonstrates how to calculate the time that passes between two times. [Arithmetic playlist: Lesson 36 of 38]

This lesson integrates language arts, music, and math. The children will listen to the story "Count on Bunnies". They will be given the opportunity to act out the story and solve bunny equations. After listening to the song "Five Young Rabbits," the children will take turns being rabbits and pantomiming the actions as the class sings. The children will combine the rabbits at the end of each verse to see how many rabbits have been added. Then they will work in pairs to create their own rabbit equations.

Task Description: The tasks in the unit access the full range of Depth of Knowledge including Recalling and Recognizing, Using Procedures, Explaining and Concluding and Making Connections, Extensions. This packet contains a curriculum-embedded CCLS aligned task and instructional supports. The task is embedded in a 4-5 week unit on Reasoning with Equations and Inequalities.

COW is an internet utility for learning and practicing calculus. The principal purpose of COW is to provide you, the student or interested user, with the opportunity to learn and practice problems in calculus (and in the future other topics in mathematics) in a friendly environment via the internet. The most important feature of the COW is that you get to know whether your answer is correct almost immediately. It is as if you had a tutor looking over your shoulder and helping you along as you work. This will be true no matter where you are or what computer you use, as long as it is connected to the internet and has a web browser. The student component of COW (called the Manager) generates calculus examples and exercises in "modules" for studying, tutoring and practice. A number of the modules allow you to experiment by letting you change values or parameters in a function or graph and then see the effect. These modules are called "hands on" modules, and are marked with an asterisk. The component of the COW accessible by instructors (called the Reporter) handles assignment and automatic grading of homework, reporting on student work and class management.