Meadows or Malls?
Students explore the use of matrices and graphing calculators to solve a complex linear programming problem.

The Yo-Yo Problem
Students explore linear patterns, write a pattern in symbolic form, and solve linear equations using algebra tiles, symbolic manipulation, and the graphing calculator.

Identifying Properties: 
A lesson on distinguishing among the various properties.

Multiplying Polynomials:
Students will learn how to multiply polynomials using the distributive properties and the FOIL method.

Number Properties: 
Notes and examples for teaching the associative, commutative, and distributive properties.

Math Forum
Activity/Lesson that uses fruit to teach students the properties of real numbers

CPS K12
This is a structured lesson plan that provides strategies for teaching, examples, worksheets, and assessments. (Day 13)

CPS K12
This is a structured lesson plan that provides strategies for teaching, examples, worksheets, and assessments. (Day 15 for Distributive- includes template for algebra tiles)

Clock Arithmetic
Students use modular arithmetic to learn the number properties outside of the normal context. This lesson comes with worksheets.

OFCN
This is a problem solving lesson with a single story where students must go through the problem solving steps and define an algebraic equation to solve.

Purple Math
This is an online tutorial on translating and solving word problems.

Ratios and Proportions:
Notes, examples, and related topics

Skill in Arithmetic:
A complete course in arithmetic basics, with an emphasis on doing math "naturally in our heads." Select lesson 18, "Proportionality."

Lewis and Clark:
PBS lesson in which students apply measurement skills and ratio and proportion to collect data on vegetation.

Jazz and Math - The Beat Goes On: 
A PBS lesson in which students apply an understanding of rates (beats per minute) to jazz tempos.

CPS K12
This is a structured lesson plan that provides strategies for teaching, examples, worksheets, and assessments. (Day 51-52)

Getting Unstuck: 
These tips can help you overcome mental barriers in problem solving.

21st Century Problem Solving:
A website devoted to problem solving literacy.

Aims@Kids Interactive Puzzles:
Two simple online puzzles. Includes interactive version of the classic farmer trying to transport a fox, a chicken, and a bag of corn across a river.

Algebra Help
Online tutorial that guides students through the basics of setting up and solving word problems.

Properties of Multiplication: 
Very brief explanation of addition properties, with examples and online practice.

Properties of Addition: 
Very brief explanation of addition properties, with examples and online practice.

Mass. Edu
Equations and Inequalities Lessons

7th Grade Math
Properties of Addition, Subtraction, Multiplication, Division and Exponentiation.

Algebra Postulates:
The basic postulates of equality, inequality, and operations.

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