In this physics activity, students will review and investigate stability of the nucleus of various elements. They will then determine factors that affect the stability of the nucleus.

In this experiment, students must decide how to divide their "endowment" of a good between private consumption and a public good. The private consumption provides a benefit (earnings) to only the individual and the public good provides a benefit to each person in the group, even those who do not contribute to the public good. This hand-run experiment is suitable for use in small classes in the range of 5 to 40 students. Some variations on this basic experiment are also described.

Secondary Math Ed majors or Geometry students are directed to a Web site where they read through a rich and extensive collection of proofs of the Pythagorean Theorem, some accompanied by Java applets. Each student then selects two proofs to prepare to present to the class-a geometric proof and a visual proof-and writes a detailed outline of each proof. The student also indicates one additional proof that was of particular interest and the reason(s) for its selection.

This is an guided inquiry lab activity in which the student will design and carry out a qualitative analysis scheme for the separation and identification of metal cations from an unknown sample.

This assignment is designed to introduce quantitative reasoning and critical thinking in viewing documentary videos on the issues of development. Students will write a review essay about one of three designated documentaries for the course.

Students will read an academic article critically and write a review of the article.

This is an outline for how one could incorporate quantum mechanics into atomic structure. Students really seem to get hooked on it and it makes atomic structure way more interesting to teach.

Introduction to Quantum Physics concepts with an activity demonstrating Heisenberg's Uncertainty Principle, wave/particle duality, Planck's Constant, de Broglie wavelength, and how Newton's Laws go right out the window on a quantum level.

Students are given a figure from a journal article of a northern blot, and are asked to interpret the results, demonstrating an understanding of both the northern blot technique and RNA processing in eukaryotic cells.

This is an activity that students will use M&Ms to gain a better understanding of radioactive dating and half-lives.

Spreadsheets Across the Curriculum module. Students build spreadsheets to forward model an example of exponential decay and interpret the meaning of the decay constant.

This activity is a guided inquiry investigation where students gather data on rate of water falling on erosion. Student will interpret their data, and develop a conclusion from the data. The data will lead to further questions, which can be developed by the students.

In this inquiry lab activity, the students will attempt to layer 6 different kinds of soda pops in a large test tube. The students will have to use prior knowledge of the physical properties of liquids, in particular density, to accomplish this task.

In this classroom experiment the students will observe primary colors mixing together to create a secondary color.

This activity helps students develop better understanding and stronger reasoning skills about distributions in terms of center and spread. Key words: center, spread, distribution

A case for the analysis of externalities (social costs and benefits) in the context of recycling. Drawn from a program in New York City.

This activity uses simulation to help students understand sampling variability and reason about whether a particular samples result is unusual, given a particular hypothesis. By using first candies, then a web applet, and varying sample size, students learn that larger samples give more stable and better estimates of a population parameter and develop an appreciation for factors affecting sampling variability.

Students will explore reflection using hand mirrors and a laser pointer in this competitive activity.

This activity is an investigation where students experiment with reflection using plane mirrors.

This an inqiury based activity where students are asked to sequence events that have occurred to a block of wood and justify their answers.