Browse Interactives

Cast Your Vote!

Cast your vote and answer some questions on the accuracy, usefulness and impact of polls.

Discipline: Mathematics
Audience: Student

Figurate Numbers

Observe the geometric structure of numbers. Play with square and triangular figurate numbers on a graph and see the shapes that representative dot patterns can take.

Discipline: Mathematics
Audience: Student

Galton Board

Use the Galton board to validate the Law of Large Numbers. Compare experimental and theoretical results to illustrate the Central Limit Theorem.

Discipline: Mathematics
Audience: Student

Discover a fourth spatial dimension by using analogies (point, line and plane) from lower dimensions. Model objects of lower dimensions to gain understanding of a hypercube, which exists in the fourth dimension.

Discipline: Mathematics
Audience: Student

Journal

Answer the journal prompts, including reflections from the workshops and your own classroom. The journal (requires a login) will save your entries for 120 days after you register, however you can print or transfer your entries to your own computer.

Discipline: Mathematics
Audience: Teacher

Metronomes

Compare the ticking of a metronome to a sine wave. Use interactive metronomes to explore the phenomenon of spontaneous synchronization.

Discipline: Mathematics
Audience: Student

Networks

Learn about the different mathematical tools used to analyze and describe networks. Practice building networks that meet specific criteria.

Discipline: Mathematics
Audience: Student

Put Your Money to Work

One way to be sure you'll have enough money to live comfortably when you retire is to put your money in a savings account where it will collect interest. Find out how simple and compound interest can help your money grow and calculate your own savings.

Discipline: Mathematics
Audience: Student

Robots

The owner of a factory has two expensive robots to automate a manufacturing process. Use the topological concept of a configuration space to coordinate their actions and maximize their efficiency on the manufacturing floor.

Discipline: Mathematics
Audience: Student

Sampling the Electorate

As the pollster for candidate Higgins, you need to know how she is faring with different groups. Read her political profile, view the demographic profile of the city, decide on the groups to poll, review the results and learn about random sampling.

Discipline: Mathematics
Audience: Student

Shotgun Sequencing

Understand how combinatorics is used in the "shotgun sequencing" of DNA. Create a directed graph to aid in sequencing of nucleotides.

Discipline: Mathematics
Audience: Student

Sizing Up the Situation

It’s make or break time at the end of the campaign so you must read Ms. Higgins’ political profile, view the demographic profile of the city and decide how many people to poll out of the entire voting age population of 16,000 to get accurate results.

Discipline: Mathematics
Audience: Student

Spatial Games

Learn how interactions of players, strategies, and outcomes can be illustrated as payoff matrices. Develop spatial models of Hawks versus Doves and Prisoner's Dilemma.

Discipline: Mathematics
Audience: Student

Symmetry

Observe the parameters for symmetry groups using common motions, such as rotation and reflection. Experiment with wallpaper patterns to learn about requirements of a group.

Discipline: Mathematics
Audience: Student

Who Says We're Alike?

You are working for candidate Fletcher. Read his political profile, view the demographic profile of the city, and decide which random sample increment to use when you conduct your first telephone poll of Republican women.

Discipline: Mathematics
Audience: Student

Your New Car: Lease or Buy?

Choosing whether to buy or lease a car depends on your individual circumstances, preferences, driving habits and budget. Use math and some basic car buying and leasing concepts to make the decision that's right for you.

Discipline: Mathematics
Audience: Student