PBS
Pbs Mathline: Looking Through the Algebraic Lens Grades 3 5 [Pdf]
Students will explore odd and even numbers as well as triangles hidden in polygons through this lesson. Printable lesson.
Other
Tufts University: Early Algebra, Early Arithmetic
This online resource is from the Tufts University offers lesson plans, worksheets, and ideas about using algebra with elementary grade levels.
McGraw Hill
Glencoe Online: Algebra 2 Lesson by Lesson Quizzes
Though this site accompanies a textbook, the lesson-by-lesson quizzes in each chapter offer great practice to any student of Algebra 2. Quizzes are self-grading and offer immediate feedback.
Better Lesson
Better Lesson: What Is Algebra?
What do 6th grade students really need to know about Algebra?
PBS
Pbs Mathline Lesson Plan: Struts'n Stuff [Pdf]
Incorporating concepts in algebra, number sense, patterning, data collection, and geometry, this lesson engages students in various hands-on activities to explore the relationship between regular polygons and the number of diagonals...
AAA Math
Aaa Math: Aaa Math Lessons
AAA Math's interactive tutorials and lessons assist students grades K-8 improve their understanding of a wide range of arithmetic topics. Students are provided with immediate feedback as they complete the "Learn," "Practice," and "Play"...
CK-12 Foundation
Ck 12: Arithmetic: Order of Real Numbers Grades 10 12
[Free Registration/Login may be required to access all resource tools.] This lesson covers listing and comparing real numbers in order according to the directions given.
Student Achievement Partners
Illustrative Mathematics: Equations of Lines [Pdf]
In this lesson, students are to interpret graphs with equations of lines.
CK-12 Foundation
Ck 12: Addition and Subtraction Phrases as Expressions Grade 6
[Free Registration/Login may be required to access all resource tools.] Write addition and subtraction phrases as single variable expressions.
CK-12 Foundation
Ck 12: Algebra: Simplify Products or Quotients
[Free Registration/Login may be required to access all resource tools.] Simplify products or quotients of single variable expressions
CK-12 Foundation
Ck 12: Algebra: Function Rules for Input Output Tables
[Free Registration/Login may be required to access all resource tools.] Students learn to write a function rule from an input-output table. Students examine guided notes, review guided practice, watch instructional videos and attempt...
CK-12 Foundation
Ck 12: Algebra: Graphs of Linear Functions
[Free Registration/Login may be required to access all resource tools.] Students learn to graph linear functions in the coordinate plane. Students examine guided notes, review guided practice, watch instructional videos and attempt...
CK-12 Foundation
Ck 12: Arithmetic: Percent Equation to Find Percent Grade 7
[Free Registration/Login may be required to access all resource tools.] Use the percent equation to find the percent.
National Council of Teachers of Mathematics
Nctm: Standards for School Mathematics
This standards-based NCTM website offers resources for teachers of mathematics for all grade levels, including interactive math tools, lesson plans, online resources, and the like.
University of Vienna (Austria)
University of Vienna: Maths Online
The University of Vienna, Austria, created this site to help bring the worlds of math and technology together. You have access to many applets and downloads that allow you to create lessons, tests, and puzzles. There are also great...
National Council of Teachers of Mathematics
The Math Forum: A Collection of Secondary Math Units
Teachers of grades 9-12 can explore these seven math units for their classes. Data collection and analysis, problem solving with spreadsheets, and linear transformation are just a few of the topics covered here.
National Council of Teachers of Mathematics
The Math Forum: Famous Problems in the History of Mathematics
On this site, there are several math problems to explore and solve. Look through some solutions by famous mathematicians and expand your thinking about some interesting math concepts. Teachers of elementary grades may want to use this...
Alabama Learning Exchange
Alex: Relationship Between Height and Length
In this lesson, eighth grade young scholars will collect data. They will use this data to analyze the relationship between the height of an individual and the length of his/her foot. Students will use a line of fit to make predictions...
Alabama Learning Exchange
Alex: Function Machine
During this lesson, eighth grade middle schoolers will interpret the perimeter of a train of triangles, squares, trapezoids, or hexagons as a function (for each input, there will be exactly one output). Students will represent their data...
CK-12 Foundation
Ck 12: Algebra: Guess and Check, Work Backward
[Free Registration/Login may be required to access all resource tools.] Solve word problems using the guess, check, and revise strategy.
CK-12 Foundation
Ck 12: Algebra: Points in the Coordinate Plane
[Free Registration/Login may be required to access all resource tools.] Graph ordered pairs on a coordinate grid.
CK-12 Foundation
Ck 12: Algebra: Additive Inverses and Absolute Values Grades 9 10
[Free Registration/Login may be required to access all resource tools.] Find the opposites and absolute values of numbers.
CK-12 Foundation
Ck 12: Algebra: Single Variable Division Equations
[Free Registration/Login may be required to access all resource tools.] Solve single variable division equations
CK-12 Foundation
Ck 12: Arithmetic: Percent Equation to Find Percent Grade 8
[Free Registration/Login may be required to access all resource tools.] Use the percent equation to find the percent.