Geometric series either get bigger or approach a single number. So, how do you know which it is? An interactive presents three different geometric series with varying common ratios. With the aid of patterns, pupils determine values of r...

Sum up the shortcuts. The interactive allows pupils to discover a shortcut in finding a partial sum of an arithmetic series. Learners use the shortcut to find other sums and to verify the process.

Using a slider, scholars build triangular numbers and their associated rectangles and use the geometric display to find the pattern to determine the next triangular number. They then relate that number to the area of the rectangle to...

It takes exactly one to win. Pupils calculate the probability of rolling five dice and having only a single die come up with a one. Learners calculate the number of expected wins out of a series of games. The interactive provides...

Bet classes didn't know playing checkers help with understanding percents. An interesting interactive has pupils consider a series of moves in checkers. It then requires them to answer a set of challenge questions on percentages...

A five-question interactive boosts scholars' knowledge of decimals and mixed numbers. Moveable base 10 blocks assist mathematicians in answering a series of multiple-choice and true or false questions. A discussion concludes the...

Have some fun building squares out of triangles. Pupils investigate the partial sums of odd numbers. Using the sum of the first four odd numbers, learners see that it can be rewritten as a sum containing a triangular number. Simplifying...

Help your class develop an understanding of sigma notation. Pupils match the sigma notation with the sums. Using the expanded sums, learners evaluate the summations. The scholars move on to prove a property of sums.

Investigate the process of combining like terms using an interactive animation. Scholars tackle simplifying expressions by manipulating rectangles that represent the terms. They add and subtract terms to arrive at the result.

Model function operations using a function machine. An interactive lesson has learners determine the patterns of a double function machine. They use the patterns to write functions and make connections between the inputs and outputs.

[Free Registration/Login Required] Use the interactive diagram to solve a projectile motion problem. After the activity, answer a challenge question to check for understanding.

[Free Registration/Login Required] Using the average acceleration formula, calculate the velocity of a falling ball, and then check your answer by dragging the point along the line in the given graph. After the activity, answer one...

[Free Registration/Login Required] In this interactive activity, change the amount of electrolytes and observe the effect it has on the electrical current to simulate the body's similar function. After the activity, answer one...

[Free Registration/Login Required] Observe what happens in the change in the type of energy during a reaction in this simulation. After the activity, answer a self-correcting challenge question.

[Free Registration/Login Required] Understand the relationship between field strength, charge, and force by determining what charge is required for a particle to levitate. After the activity, answer a challenge question to check for...

[Free Registration/Login Required] Observe what happens to volume as pressure is changed, and then answer a challenge question after the activity.

[Free Registration/Login Required] Use the interactive cooling curve graph as a tool to answer two challenge questions about temperature change in the fossil fuel, Naphthalene.

[Free Registration/Login Required] Use your knowledge of molecular geometry to analyze the structures, and determine which of them accurately illustrates the trigonal planar molecule Boron Trifluoride. Then answer two challenge questions...

[Free Registration/Login Required] Drag different characteristics of acids and bases to the correct location on the interactive table. After the activity, answer one challenge question to check for understanding.

[Free Registration/Login Required] Manipulate the electrons and protons to explore metallic bonding. Then answer a self-correcting concept question.

[Free Registration/Login Required] Explore resonance by manipulating the electrons and bonds, and then answer a challenge question about the concept.

[Free Registration/Login Required] Find out what mathematical function to perform when converting between particles and moles. Then answer one challenge question about the topic.

[Free Registration/Login Required] Find out what mathematical function should be performed in order to move from mass to moles and back again. After the activity, answer one multiple choice, challenge question about the topic.

[Free Registration/Login Required] Manipulate graph data to see a representation of the percent composition of different compounds. Then answer a challenge question about the activity.