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# What is an Oscillation Amplitude?

This is an activity about oscillation. Learners will observe, time, and graph the data of the side to side motion of the mirror used in the soda bottle magnetometer activity to determine the mirror's oscillation amplitude. This activity requires... (View More)

Audience: High school

# Auroral Battery Electrical Circuit

This is a lesson about the mathematics of auroras. Learners will be exposed to the mathematical formulas that are used to estimate how much magnetic energy is available in the magnetic tail region of Earth. This is the nineteenth activity in the... (View More)

Audience: High school

# Polarimeter: Do NOT Use this Device to Measure a Polar Bear!

This is an activity about polarized light. Learners will use a polarizing filter to build and calibrate a simple polarimeter, use the constructed polarimeter to find sources of polarized light, and measure the angle of polarization of polarized... (View More)

# Colorgraphs: See the world in a new light

In this activity, learners will explore the properties of color filters and filter bandpass by observing light sources using diffraction grating and color filters and create a graph of percent transmission versus wavelength to characterize the... (View More)

# Sunspot Tracker: There's a Little Dark Spot on the Sun Today

This is an activity about the movement of sunspots. Learners will project an image of the Sun using a telescope, binoculars, or a pinhole projector, observe and record sunspots over the course of several days, and calculate the speed of the observed... (View More)

# What is an Oscillation Period?

This is an activity about oscillation. Learners will observe, time, and graph the data of the side to side motion of the mirror used in the soda bottle magnetometer activity to determine the mirror's oscillation period. This activity requires prior... (View More)

Audience: High school

# Spectroscope: Fingerprinting the Luminous Suspects

This is an activity about spectroscopy. Learners will build a spectroscope with a scale for measuring wavelength and use it to observe various light sources. They will identify spectral lines in more than one light source and analyze the collected... (View More)

# Right Place, Wrong Time

This story can be used to teach that results must be checked against known facts to see if they're reasonable. It is designed as a follow up to "The Fall of the Ruler." This resource is from PUMAS - Practical Uses of Math and Science - a collection... (View More)

Keywords: Reaction times
Audience: High school
Materials Cost: Free per student

# The Fall of the Ruler

This activity shows how an ordinary ruler can measure human reaction time (RT). Learners will convert a standard ruler into a time ruler (relating time and distance) and measure each others RT. They will also calculate means and variances and the RT... (View More)

# The Mathematical Implications of Lying

This article explores how statistics can be interpreted in different ways to yield different conclusions. It describes the outcome and discussion of two class activities. In the first, the results are interpreted to "show" that taking a group rather... (View More)

Keywords: Probability; Mean; Average
Audience: Middle school
Materials Cost: Free