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Filters: Your search found 9 results.
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Mathematics
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Cooperative learning
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Middle school
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# Identifying the Key Changing Conditions of the Earth System (Grades 7-9)

This unit consists of four activities. Students begin by examining temperature cycles (current, recent and historical) then add in factors such as carbon dioxide, precipitation and cloud cover to discover regional and global differences in the... (View More)

# Appearances Can Be Deceiving

Learners will explore the relationship between angular size, actual size, and distance by using their finger, thumb and fist as a unit of angular measurement. Includes teacher background, student data sheet, and extensions.

# Probing Below the Surface of Mars

This activity is about the discovery of water ice on Mars. Learners will record and graph temperature data and use a model of an ice-rich and ice-free surface on Mars to examine how ice content in the martian soil would impact the temperature of a... (View More)

# Measure a Tree

This activity introduces measurement and scale using hands-on activities. In this activity, students use the concept of similar triangles to determine the height of a tree. This activity is one of several available on an educational poster related... (View More)

# Where Do They Come From? Follow the Falling Meteorite

This is a lesson about mapping objects using triangulation. Learners hunt distant meteorites using geometric properties and relationships, demonstrate and experience triangulation, and apply triangulation to directed and group-challenge mapping... (View More)

# Where Do They Come From? The Meteorite-Asteroid Connection

This is a lesson about the path meteorites take to get from the asteroid belt to Earth and how rare it is for the Earth to be hit by a large asteroid. Three activities comprise the lesson. Learners will draw circles and ellipses to illustrate basic... (View More)

# Where Do They Come From? Impact Crater - Holes in the Ground!

This is a lesson about impact craters; the relationships between crater size, projectile size and projectile velocity; and the transfer of energy in the cratering process. Learners will create plaster of Paris or layered dry impact craters and... (View More)

# How Did They Form? Solving a Mystery

Learners will conduct an investigation, observe and record the physical characteristics of an unknown rock (meteorite), determine the mass of the unknown rock using math skills, determine the density of the rock, describe and classify a meteorite,... (View More)

# Distance to the Moon

Learners will use simple sports balls as scale models of Earth and the Moon. Given the astronomical distance between Earth and the Moon, students will determine the scale of the model system and the distance that must separate the two models. This... (View More)

Audience: Elementary school, Middle school, High school
Materials Cost: Free
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