Students figure the number of half-lives since the sample solidified, and therefore the "age" of the sample rocks.

Students examine the observation of "coronal holes," by x-rays, also about related fast streams and moderate magnetic storms that recur at 27 day intervals. They study NASA'S great observatories.

High schoolers explore magnetism and magnetic phenomena on the Sun.

Students explore rotating frames of reference, focusing on the weightless environment in space and the Coriolis force.

Pupils trace the beginning of the heliocentric theory of the solar system--the idea that the solar system revolves around the Sun--to an observation by the Greek astronomer Aristarchus, which convinced him that the Sun was much bigger...

Students identify, describe, count, tally, and graph life found in one square foot of land.

Fourth graders view a Newton's Apple show that explores glider mechanics, explore the four forces, build and fly a glider to specific guidelines. They adjust the glider for greater accuracy and distance using four forces, and assess...

Students see the importance of primary sources in the study of history, but also the limitations of relying only on primary sources of taking the money, as it were, at face value.

Students create topics for other students to write about in the computer lab.

Students practice sorting lids in different ways so that each group determines a sorting pattern. They examine how to work in groups while sharing ideas. They establish group work relationships that become apparent to the teacher in this...

Young scholars work in teams to identify and sort types of packaging used in food production. They consider ways to reduce the environmental impact of packaging and reflect how consumer choices play a role in trash production.

Students examine water data for up to a month and perform tests on the samples.

Students begin a class recycling project. They create data sampling equipment using their own designs and test them in the field.

Students study the design elements of Art Nouveau, its sources and development. They create art projects in ceramics and glass that exemplify the focus of Art Nouveau as a decorative style.

Students participate in a game similar to musical chairs, but use hoops to walk around while music is playing. When the music stops, students jump inside the nearest hoop.

Students use signal flags chart to identify common ship signals. They create different signal flags and meanings on their own.

Pupils use the Internet and e-mail to research the Mayan culture. They participate in "Mayaquest" and create a multimedia presentation and a visual product of what they find in their research.

Pupils examine how to determine the species of a tree through the examination of the bark and leaves. They create tree rubbings, match bark samples with trees on a nature walk, match leaves using a tree identification guide, and observe...

Students study and discuss various entrepreneurs from their home state and then prepare a proposal for a business they would like to own and operate in the future.

Students analyze current events and write and deliver extemporaneous speeches to the class. They define and discuss extemporaneous speeches, conduct research and deliver their speech, and participate in a peer evaluation of students'...

Students investigate rain forests. They view and discuss photos of rain forests, answer discussion questions, define key vocabulary words, and participate in a class discussion.

Students investigate the difference between diseases that are controllable and those that happen by chance. They discuss the chance of dieing in a war with that of dieing from a disease that has controllable factors. They complete a...

Students make predictions regarding the subject of a news article, based on its title. They read the article and discuss it, answering various comprehension and thought questions.

Students read and discuss a news article about the elderly in the workplace. They use the content of the article for practice in making predictions, determining verb tense, and basic comprehension.