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: How Many Eggs?
Use the clues at this one page website to figure out just how many chocolate eggs each child will receive. The solution is available when you figure it out.
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: 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.
National Council of Teachers of Mathematics
Nctm: Illuminations: Interactive Times Table
Use this interactive multiplication table to practice the multiplication facts through 9 X 9. CCSS.Math.Content.4.OA.A.1 Interpret a multiplication equation as a comparison
University of Cambridge
University of Cambridge: Nrich: Mind Reader
This series of operations always yields the same answer. Use your problem solving and algebraic skills and see if you can find the solution. When you have you can check the solution on this one page website.
Rice University
Rice University: Cynthia Lanius: Algebra Fun With Calendars
A fun algebraic problem involving a calendar. Discussion, solution, and follow-up problem are included.
Other
Exponentes Enteros
In Spanish. An online lesson on exponents, and their rules. Begins with the basic concept of exponents, and ends with one variable equations. Provides a few sample problems for students with a link to the solutions.
Interactive Mathematics
Interactive Mathematics: Trigonometric Functions
Just about everything you need to know about trigonometry can be found here. Interactive examples and demonstrations help to enhance the lessons. Although not required, the tutorial uses Live Math and Scientific Notebook.
Quia
Quia: Addition Matching Sums 10 to 18
This website for young children gives them practice adding sums from 10 to 18 in a matching type format.
Quia
Quia: Addition Flashcards Sums 10 to 18
This website for young children gives them practice adding sums from 10 to 18 in a flashcard type format.
Quia
Quia: Addition Concentration Sums 10 to 18
This website for young children gives them practice adding sums from 10 to 18 in a concentration game type format.
Quia
Quia: Addition Matching Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a matching type format.
Quia
Quia: Addition Flashcards Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a flashcard type format.
Quia
Quia: Addition Concentration Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a concentration game type format.
Khan Academy
Khan Academy: Two Step Inequality Word Problems
Practice solving two-step inequality word problems.
Khan Academy
Khan Academy: Two Step Inequalities
Solve inequalities that take two steps to solve. For example, solve 3x + 2 > 5. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Slope Intercept Intro
Practice your basic understanding of slope-intercept form for linear equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Simplifying Rational Expressions
Have you learned the basics of rational expression simplification? Great! Now gain more experience with some trickier examples.
PBS
Pbs: String Product: Y = X^2
Examine how a giant sculpture at the National Museum of Mathematics represents the solutions to the equation y=x^2. This video focuses on the basics of graphing quadratic functions and the relationship between x and y values along the...
TeachEngineering
Teach Engineering: Feel the Stress
Working individually or in groups, students explore the concept of stress (compression) through physical experience and math. They discover why it hurts more to poke themselves with mechanical pencil lead than with an eraser. Then they...