TeachEngineering
Teach Engineering: Stay in Shape
In this activity, students will learn that math is important in navigation and engineering. Ancient land and sea navigators started with the most basic of navigation equations (Speed x Time = Distance). Today, navigational satellites use...
Purple Math
Purplemath: Conics: Hyperbolas
A three-part tutorial that discusses the basic terms, definitions, and formulas related to hyperbolas.
University of Cambridge
University of Cambridge: Nrich: Heads and Feet
Solve this problem about hens and sheep and practice your algebraic thinking all at the same time. A solution is provided at this one page website.
Khan Academy
Khan Academy: Slope From Two Points
In this exercise, students practice determining the linear equation and slope from two points on a line graph. Students receive immediate feedback and have the opportunity to watch a video, get hints, or try questions repeatedly.
Harvey Mudd College
Harvey Mudd College: Elementary Solution Methods for First Order Od Es
Elementary Solution Methods for First-Order ODEs: Contains a large amount of information regarding first order differential equations, including definitions, examples, and basic properties.
Math2
Math2: Circles
This site has many useful formulas and examples relating to circles, including related definitions, circumference of a circle, area of a circle, length of a circular arc, area of a circular sector, equation of a circle in cartesian...
Khan Academy
Khan Academy: Solving Proportions
Practice solving basic proportions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Knowledge Share
Super Kids: Addition Worksheet Creator
Create your own addition math facts worksheets. Use them in the classroom for practice or timed drills, or at home! Choose from two levels of difficulty, and vertical or horizontal equation format. You input minimum and maximum values of...
Varsity Tutors
Varsity Tutors: Aplusmath: Addition Worksheets
Create customized addition worksheets. Choose from basic facts to four-digit by four-digit questions. The size of problem set can be selected, as well as whether the format will be vertical or horizontal. An answer key can also be...
Other
Quick Math: Algebra Simplify
This QuickMath algebra site simplifies an advanced expression that you enter and gives answer.
Wyzant
Wyzant: Basics of Word Problems
At this site from WyzAnt, learn the steps necessary to solve a word problem using algebra. Problems involve one-answer and multiple-answer solutions.
Khan Academy
Khan Academy: Slope From a Graph
In this exercise, students practice constructing a linear equation for a line graph in order to find the slope. Students receive immediate feedback and have the opportunity to watch a video, get hints, or try questions repeatedly.
Can Teach
Can Teach: Grab and Add
Students will practice their addition skills through this game. Lesson plan indicated for 1st-3rd grades.
Quia
Quia: Adding to 10
This website for young children gives them practice adding sums to 10. Problems are presented as teddy bears to add up with the corresponding digits that represent the problem symbolically.
Wolfram Research
Wolfram Math World: Circle
This site from Mathworld provides a wealth of information about circles is presented. The information ranges from the basics--radius, circumference, etc.--to advanced concepts--equations in polar and pedal coordinates, etc.
Other
University of Wisconsin: Basic Algebra
This college site offers a variety of problems and answers. Problems are divided into topic areas for easy access. Also offers quizzes with each topic.
Purple Math
Purplemath: Conics: An Overview
Introduces the basics of conics in algebra, including a flow-chart for determining which sort of conic is represented by a given equation.
Other
Traduciendo Expresiones Algebraicas
In Spanish. An overview of translating sentences into algebraic expressions. Begins with the basics of words relating to operations, and expressions with one variable. Many example problems available for students.
Alabama Learning Exchange
Alex: Battle to the Death: Adding Integers
The goal of this lesson plan is for students to use manipulatives to add integers, creating concepts rather than memorizing rules. This lesson plan will be related to the 300 Spartans who battled the invading Persians at the Battle of...
Wyzant
Wyzant: Calculators Index
Online calculators will help you solve equations, factor, complete the square, simplify, graph, and substitute.
Math2
Math2.org: Exponential Identities
A list of exponential rules and logarithm rules for manipulating such terms and factors in equations or expressions.
Shodor Education Foundation
Shodor Interactivate: Whole Number Cruncher
Put a number, the input, in the Whole Number Cruncher. See if you can discover the rule that gives you the result, the output. Directions are just a click away.
Paul Dawkins
Paul's Online Notes: Algebra: Solutions and Solution Sets
Detailed math tutorial features notes and examples that introduce and define basic ideas involved in solving equations and inequalities and solution sets.
University of Cambridge
University of Cambridge: Nrich: Brothers and Sisters
Figure out the ages of the children in this family using the clues and your sound algebraic thinking. Check the solution after you complete the problem.