Currently the PUMAS collection contains **84** examples.

The PUMAS examples are aimed primarily at helping pre-college teachers enrich their presentation of topics in math and science.

- You may find
**a number of examples**that relate to your area of interest, perhaps written in different styles, and possibly taking different approaches to the material. There may also be**comments/lesson plans**filed with some of the examples, written by previous users. **Use these examples as a**-- Select, adapt, recontextualize, and present the material to your students in a way that you judge will best meet your students' needs, abilities, and interests.*resource*- You may have ideas related to a particular example that might be helpful to subsequent users. There is an opportunity, on the "Display an Example" page associated with that example, for you to
**submit your comments/lesson plans**. - PUMAS examples are
**citable references**. If you use material from PUMAS examples in other work, please cite them appropriately, e.g.: Chambers, L.H., "How Now, Pythagoras?", 07_10_98_1, The PUMAS Collection, http://pumas.nasa.gov, 1998.

This is a good way to start, or to find examples added after a certain date. **Click links below** to get the list of all the **PUMAS Examples**, arranged by that field.

by Title | by Grade Level | by Date Accepted | by Keywords | by Author

You may need to reference the **Benchmarks Page** to find the Benchmark of interest.

Click the **Benchmark Number** to see the Benchmark Details, or click the **Example Title** to view the Example

- Ice Sheets and Sea Level Rise
- Lower Calories, Lower Fat: Making a Healthier Cake Without Loss of Taste

- Coastal Threat: A Story In Unit Conversions
- Mapping Your State and Community
- Studies of a Population of Stars: Distances and Motions
- Studies of a Population of Stars: Mapping the Positions of Stars

- Can an Astronaut on Mars distinguish the Earth from its Moon?
- Ice Sheets and Sea Level Rise
- Studies of a Population of Stars: Distances and Motions
- Studies of a Population of Stars: Mapping the Positions of Stars

- Can an Astronaut on Mars distinguish the Earth from its Moon?
- Grandpa’s Social Security
- Isoperimetric Geometry
- Pilots, Airplanes, and the Tangent of Three (3) Degrees
- Two Answers are Better than One
- Thermo and Fluid Dynamics of a Homemade “Lava Lamp”

- Dollar$ or Cent$?
- Square Roots Using a Carpenter's Square
- Lower Calories, Lower Fat: Making a Healthier Cake Without Loss of Taste

- Dr. Smith vs. The Lawyer
- Square Root of 2: Irrational, Yes! Impractical, No!
- Water Bottles, Root Beer, and Air
- Why is Summer Hot?
- Lower Calories, Lower Fat: Making a Healthier Cake Without Loss of Taste

- Dream Job
- Pilots, Airplanes, and the Tangent of Three (3) Degrees
- When a Ruler Is Too Short
- Estimating Planar Areas Using Analogue Methods

- Metric Wins!
- Right Place, Wrong Time
- Seeing Interference Fringes
- The Fall of the Ruler
- When a Ruler Is Too Short
- Why is Summer Hot?

- Coastal Threat: A Story In Unit Conversions
- Dr. Smith vs. The Lawyer
- Metric Wins!
- Seeing Interference Fringes

- Learning from Slide Rules
- Length of the Day
- Seeing Interference Fringes
- When a Ruler Is Too Short
- Estimating Planar Areas Using Analogue Methods
- What the Doppler Effect Tells Us About Distant Stars and Planets

- Geometry to the Rescue: A Story in Pictures
- How Now, Pythagoras?
- Square Roots Using a Carpenter's Square

- Who Hits Harder: The Nordic Skier or Aerial Jumper?
- Why Is There a Tidal Bulge Opposite the Moon?
- What the Doppler Effect Tells Us About Distant Stars and Planets

- Can an Astronaut on Mars distinguish the Earth from its Moon?
- Determining the Altitude of Iridium Flares
- Geometry to the Rescue: A Story in Pictures
- How Big Is the Earth?

- Who Hits Harder: The Nordic Skier or Aerial Jumper?
- Why Is There a Tidal Bulge Opposite the Moon?
- What the Doppler Effect Tells Us About Distant Stars and Planets

- Just What is a Logarithm, Anyway?
- What is Wind Chill?
- Algebra Magic - Create Your Own Number Puzzles
- Why Is There a Tidal Bulge Opposite the Moon?

- Just What is a Logarithm, Anyway?
- Right Place, Wrong Time
- The Fall of the Ruler
- Water Bottles, Root Beer, and Air
- What is Wind Chill?
- Why Is There a Tidal Bulge Opposite the Moon?

- Why Is There a Tidal Bulge Opposite the Moon?
- Studies of a Population of Stars: Distances and Motions
- Studies of a Population of Stars: Mapping the Positions of Stars

- Just What is a Logarithm, Anyway?
- Algebra Magic - Create Your Own Number Puzzles
- Why Is There a Tidal Bulge Opposite the Moon?

- Determining the Altitude of Iridium Flares
- How Far Can You See?
- Pilots, Airplanes, and the Tangent of Three (3) Degrees
- How Big Is the Earth?

- Water Bottles, Root Beer, and Air
- Why Tailgating on Freeways is Unsafe: A Real-life Example Using Quadratic Equations

- Why Tailgating on Freeways is Unsafe: A Real-life Example Using Quadratic Equations
- How Big Is the Earth?

- Studies of a Population of Stars: Mapping the Positions of Stars
- Studies of a Population of Stars: How Bright Are the Stars, Really?

- How Far Can You See?
- Why Tailgating on Freeways is Unsafe: A Real-life Example Using Quadratic Equations

- Logarithms: Taking the Curve Out
- Square Root of 2: Irrational, Yes! Impractical, No!
- Why Is There a Tidal Bulge Opposite the Moon?

- Can an Astronaut on Mars distinguish the Earth from its Moon?
- Why Is There a Tidal Bulge Opposite the Moon?

Click the **Benchmark Number** to see the Benchmark Details, or click the **Example Title** to view the Example

- Modeling the Motions of the Earth, Moon and Sun
- The Cause of the Earth's Seasons
- The Shadow of the Dog

- Could a World of Swimmers Raise Sea Level?
- How Thick is the Atmosphere?
- Ice Sheets and Sea Level Rise

- Can an Astronaut on Mars distinguish the Earth from its Moon?
- Making Clouds: Aerosol-Cloud Interactions in a Beaker

- Could a World of Swimmers Raise Sea Level?
- Volcanic Clouds and the Atmosphere
- Making Clouds: Aerosol-Cloud Interactions in a Beaker

- Particle Man and the Photon
- The Shadow of the Dog
- Making Clouds: Aerosol-Cloud Interactions in a Beaker

- Hypothermia in the Little House
- Particle Man and the Photon
- What is Wind Chill?
- Making Clouds: Aerosol-Cloud Interactions in a Beaker

- Earth Turns? Prove It!
- Why Is There a Tidal Bulge Opposite the Moon?
- Why Tailgating on Freeways is Unsafe: A Real-life Example Using Quadratic Equations

- Earth Turns? Prove It!
- Launch Speed
- Right Place, Wrong Time
- The Fall of the Ruler
- Who Hits Harder: The Nordic Skier or Aerial Jumper?
- Thermo and Fluid Dynamics of a Homemade “Lava Lamp”
- Why Is There a Tidal Bulge Opposite the Moon?
- Why Tailgating on Freeways is Unsafe: A Real-life Example Using Quadratic Equations

- Earth Turns? Prove It!
- Length of the Day
- Right Place, Wrong Time
- It's Raining Cats and Dogs...and Fish and Frogs...and Birds
- Why Is There a Tidal Bulge Opposite the Moon?

- Earth Turns? Prove It!
- Right Place, Wrong Time
- It's Raining Cats and Dogs...and Fish and Frogs...and Birds
- Why Is There a Tidal Bulge Opposite the Moon?

- Right Place, Wrong Time
- The Moon Orbits the Sun?!?!
- It's Raining Cats and Dogs...and Fish and Frogs...and Birds

- Length of the Day
- The Moon Orbits the Sun?!?!
- It's Raining Cats and Dogs...and Fish and Frogs...and Birds
- Why Is There a Tidal Bulge Opposite the Moon?

- Right Place, Wrong Time
- The Fall of the Ruler
- Sand or Rock? Finding Out from 1,000 km
- Mapping Your State and Community

- Right Place, Wrong Time
- The Fall of the Ruler
- When a Ruler Is Too Short
- Sand or Rock? Finding Out from 1,000 km
- Mapping Your State and Community
- Studies of a Population of Stars: Distances and Motions
- Studies of a Population of Stars: Mapping the Positions of Stars

- Sand or Rock? Finding Out from 1,000 km
- Mapping Your State and Community
- It's Raining Cats and Dogs...and Fish and Frogs...and Birds

- Length of the Day
- Seeing Interference Fringes
- Seeing Interference Fringes with a Telescope
- When a Ruler Is Too Short
- Sand or Rock? Finding Out from 1,000 km
- Mapping Your State and Community
- Studies of a Population of Stars: How Bright Are the Stars, Really?
- How Big Is the Earth?

- Can an Astronaut on Mars distinguish the Earth from its Moon?
- Now You See It, Now You Don’t
- Seeing Interference Fringes
- Seeing Interference Fringes with a Telescope

- Learning to Think Globally
- Now You See It, Now You Don’t
- Seeing Interference Fringes
- Seeing Interference Fringes with a Telescope
- Two Answers are Better than One
- Who Hits Harder: The Nordic Skier or Aerial Jumper?

- How Many Days Are in a Year?
- Seeing Interference Fringes with a Telescope
- Who Hits Harder: The Nordic Skier or Aerial Jumper?

- How Many Days Are in a Year?
- Seeing Interference Fringes with a Telescope
- Who Hits Harder: The Nordic Skier or Aerial Jumper?

- Studies of a Population of Stars: Distances and Motions
- Studies of a Population of Stars: How Bright Are the Stars, Really?