Lesson Plan
Curated OER

Cartesian Coordinate System

For Teachers 7th - 9th
Students explore the Cartesian coordinate plane and plot points on the graph. They interpret coordinates for a point from the graph and give the ratio of rise over run for slope.
Lesson Plan
Curated OER

Clock Arithmetic and Cryptography

For Teachers 2nd - 5th
Students perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Students apply their multiplication, division, addition, and subtraction skills.
Lesson Plan
Curated OER

Number Sense

For Teachers 8th
Eighth graders participate in a lesson that is concerned with reviewing basic math concepts using the four operations. The activity is composed of a math game that is played by them.
Lesson Plan
Curated OER

Addition With Integers

For Teachers 8th
Eighth graders investigate the concept of combing integers using addition. They begin to comprehend the connection of addition and subtraction. Students also review the concept of positive and negative numbers.
Website
Purple Math

Purplemath: "Number" Word Problems

For Students 9th - 10th Standards
Demonstrates, step-by-step and with illustrations, how to set up and solve 'number' problems.
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Wyzant

Wyzant: Word Problem Basics Worksheet

For Students 9th - 10th
The worksheet consists of exercises that practice solving word problems. An example problem and solutions are included.
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abcteach

Abcteach: Select a Math Problem Type

For Teachers Pre-K - 1st
Generate worksheets for math problems ranging from simple addition problems to place value with expanded notation for free. Your choice of font, font size, color and landscape when printing.
Interactive
Lawrence Hall of Science

The Math Page: Topics in Pre Calculus: Roots of Higher Degree Polynomial

For Students 9th - 10th Standards
Here is a site that clearly and thoroughly explains how to find the roots of polynomials of degree greater than two. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this...
Website
Wolfram Research

Wolfram Math World: World's Most Extensive Mathematics Resource

For Students 9th - 10th Standards
MathWorld provides a huge mathematics encyclopedia detailing the concepts of geometry, algebra, calculus, discrete math, number theory, and other math topics--complete with formulas, diagrams, examples, and references for thorough...
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Khan Academy

Khan Academy: Classifying Numbers

For Students 6th - 8th
In this exercise, students practice classifying numbers. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.