Sophia Learning
Sophia: Control and Variable Groups: Lesson 4
This lesson will explain the difference between a control group and variable groups, when using the scientific method. It is 4 of 4 in the series titled "Control and Variable Groups."
Sophia Learning
Sophia: Control and Variable Groups: Lesson 1
This lesson will explain the difference between a control group and variable groups, when using the scientific method. It is 1 of 4 in the series titled "Control and Variable Groups."
Sophia Learning
Sophia: Independent/dependent Variables: Lesson 1
This lesson will explain the difference between independent and dependent variables. It is 1 of 4 in the series titled "Independent/Dependent Variables."
Sophia Learning
Sophia: Variables in Algebraic Expressions: Lesson 1
This lesson will explain how to define a variable in an algebraic expression. It is 1 of 4 in the series titled "Variables in Algebraic Expressions."
Math Is Fun
Math Is Fun: Introduction to Algebra
How is algebra like solving a puzzle? What is a variable? This simple introduction to algebraic equations offers examples of how to solve for "x" and how to balance equations. Follow a link to a "Simple Algebra Worksheet" when you're...
Math Is Fun
Math Is Fun: Introduction to Algebra: Multiplication
How do you solve for a variable that is multiplied by another number in an algebraic equation? Find the answer to this question and see examples showing how to solve other types of algebra "puzzles."
Wyzant
Wyzant: Exponents of Variables Worksheet
After completing the 20 questions on the inter-active quiz, the students can have the site from WyzAnt check their answers for them. The questions presented all involve a monomial in parenthesis raised to a number exponent. The student...
Wyzant
Wyzant: Equation Basics Worksheet
An inter-active quiz from WyzAnt of 20 simple equations for students to solve. The solutions are displayed after the students input their answers.
CK-12 Foundation
Ck 12: Biology: Science Experiments
[Free Registration/Login may be required to access all resource tools.] Introduction to scientific experiments.
Free Math Help
Free Math Help: Introduction to Algebra
An explanation of algebra and equations that emphasizes how easy it is to learn the basics. The concept of balancing equations is looked at in detail. This page can be used by teachers in lesson planning or by students who seem to be...
Math Slice
Math Slice: Two Step Equations: Math Worksheets
This tool allows you to create multiplication and division worksheets with two-step equations. The worksheets can have varying difficulty levels that may include decimals and/or negative numbers. Clicking on "Next Step" reveals the next...
University of Cambridge
University of Cambridge: Nrich: Augustus' Age
Use a simple formula to help you figure out the age of the mathematician Augustus de Morgan. When done, check your results against the solution.
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.
University of Cambridge
University of Cambridge: Nrich: Clever Santa
Help Santa figure out how many puzzles and books to leave for the children of this family. Once you figure it out you can check the solution.
University of Cambridge
University of Cambridge: Nrich: Gift Stacks
Figure out how many gifts are in each stack using the clues that are given. The solution is available at this one page website.
University of Cambridge
University of Cambridge: Nrich: Eggs in Baskets
At this one page website you will not be carrying all your eggs in one basket. Use the clues to figure out how many eggs are in each of the baskets listed. When you have your solution check to see if it is the same as the one available...
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.
Hunkins Experiments
Hunkin's Experiments
Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do and use...
Wyzant
Wyzant: Equation Calculator
Students can input an equation and have the site solve it for them, complete with steps shown and explanations given along the way. Equations must be simple, first- or second-degree with only one variable. A quick list of rules to follow...
Purple Math
Purplemath: Simplifying With Parentheses
Explains, with worked examples, how to simplify expressions which involve parentheses and variables, including how to take a negative through the parentheses.
Department of Defense
Do Dea: Fundamental Theorem of Calculus Part 2
This part of the Fundamental Theorem of Calculus tells us what happens when you take the derivative of an integral that has a variable as an upper limit of integration. Examples and explanations are provided. Great review for the AP...
University of Waterloo (Canada)
University of Waterloo: Math Frog: Solving Equations 1
Race against the clock to see how many simple equations you can solve correctly in three minutes.
University of Waterloo (Canada)
University of Waterloo: Math Frog: Solving Equations 3
Race against the clock to see how many equations you can solve correctly in four minutes. For each equation, you will be given two variables, and you will solve for the third.
University of Waterloo (Canada)
University of Waterloo: Math Frog: Solving Equations 2
Race against the clock to see how many simple equations you can solve correctly in three and a half minutes.