## 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.

## Rock Cycle Assessment: Test Your Skills

Test your knowledge of rocks and the rock cycle. Take this 15-question test, review your correct and incorrect answers, and print out your assessment.

## The Rock Cycle Diagram

Put your knowledge of rock types and geologic processes together to identify the different parts of the rock cycle. Answer a series of questions to complete the rock cycle diagram.

## The Rock Cycle

Learn how to distinguish between types of rocks and discover how rocks change over time.

## Running a Function Machine

The connected machine is a single function that takes an input, runs it through the network inside and produces an output. You control a network of function machines along with the input and the operation performed by each machine to solve problems.

## 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.

## Sequence

Listen to an explanation about the series of events in Cinderella. Then look at some pictures where the story's events are all mixed up and put them in the correct order.

## Setting

Listen to an explanation about Cinderella’s setting. Identify the story’s place and time.

Can you judge an object by its shadow? Use your mental rotation skills to determine if a shadow can be produced by a particular shape.

## Shotgun Sequencing

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

## Shrinking a Landfill

Shrink a community landfill by 10 percent with a budget of \$50,000. Review each type of waste/garbage (food, glass, paper, etc.) and see how much reduction you can get for your money.

## 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.

## Slicing Solids

A cross section is the face you get when you make one slice through an object. See how many shapes you can make when you cut different cross sections of a cube.

## South Africa Timeline

This timeline provides insight into the long history of struggle of the black population of South Africa. Follow the centuries of European wars and colonial rule and the policies that led to apartheid.

## 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.

## Speeches: Use Your Document Detective Skills

Read three speeches, one at a time, about events of historical significance. Identify the region and era particular to each speech, and answer additional questions about the information it contains.

## Spelling Bee

Contestants in grades 1-8 will listen to three stories, one at a time, and then spell words from each story. Students in high school will listen to separate sentences and then spell the words from each sentence.