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.
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.
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.
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.
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.
Test your detective skills when you read three random documents. You will have three minutes to read each document, answer two questions about the region, two questions about the time period and three questions about the document.
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.
When the light of a star passes through a spectrograph, elements of that star reveal a specific signature. Compare the spectra of four elements and a star to identify which elements you can detect in the star's atmospere.
Reflect on a medieval tapestry and write a story about what you think is going on. Read stories that other site visitors have written about the tapestry.
To find the area of a shape, surround the shape with a rectangle, determine the areas of the rectangle and subtract the pieces of the rectangle that are outside the original shape. Use this geoboard to create shapes and determine their areas.
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.
The colors listed in the boxes represent different parts of speech: noun, verb, adjective, adverb, etc. Figure out which colors represent which part of speech and then use the colors to create proper sentences.
To find a hidden treasure use taxicab geometry, a special kind of geometry that counts in city blocks. Pick an intersection, ask the computer how far it is to the treasure and get the distance using taxicab geometry.
A good story is like a tasty soup. Watch and listen to an interactive version of "Cinderella," and explore the different ingredients and elements that make the story interesting.
There are many sources of variation in data, including random error and bias. Observe the difference between error and bias in this line matching exercise.
Different forms of media can present different views of the same story. See how your point of view might change as you read an article, watch a news clip and read an online article about the same event.
