Filters: Your search found 10 results.
Topics/Subjects:
Mathematics  
Educational Level:
Informal education  
Learning Time:
45 to 60 minutes  
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Now showing results 1-10 of 10

Students will design, build and then test a rain gauge to measure precipitation. By sharing their results, students will recognize the need for standardization and precision in scientific tools. The lesson uses the 5E instructional model. All... (View More)

The total amount of water on Earth, the places in which it is found and the percentages of fresh vs. salt are examined in this lesson. A short demonstration allows students to visualize the percentage differences and a coloring exercise illustrates... (View More)

This is an activity about modeling the apparent motion of the Sun as seen from Earth. Learners will use a flashlight, toothpick, and styrofoam model Sun to mimic the relative shadow motion produced by a sundial. The activity will help learners... (View More)

Audience: Informal education
Materials Cost: $1 - $5

This is an activity about light and shadow. Learners will make outdoor sundials. They will use the sundial and the length of the shadow that is cast to explore the relationship between the size and position of the shadows and the position of the Sun... (View More)

Audience: Informal education
Materials Cost: Free

This is an activity about comparing images of the Sun in different wavelengths of light. Learners will examine solar images taken by the SOHO spacecraft to look for differences in the features that are visible in the various wavelengths of light.... (View More)

Audience: Informal education
Materials Cost: Free

This is an activity about how light travels. Learners will perform two experiments. The first explores blocking light to create shadows. The second asks learners to use mirrors to figure out that light travels in a straight line. This is Activity 4... (View More)

Audience: Informal education
Materials Cost: $5 - $10

In this activity, students construct base-two slide rules that add and subtract base-2 exponents (log distances), in order to multiply and divide corresponding powers of two. Students use these slide rules to generate both log and antilog equations,... (View More)

In this activity students use log tapes and base-two slide rules as references to graph exponential functions and log functions in base-10 and base-2. Students discover that exponential and log functions are inverse, reflecting across the y = x axis... (View More)

In this activity, students graph second and third order functions, discovering an inverse relationship between squares and square roots and between cubes and cube roots. Students graph these functions on both linear grid (evenly spaced numbers), and... (View More)

In this activity students construct Log Rulers, finely calibrated in base-10 exponents and numbers (logs and antilogs). They practice reading these scales as accurately as possible, listing all certain figures plus one uncertain figure.  This is... (View More)

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