Worksheet
Curated OER

Spotting an Approaching Asteroid or Comet

For Students 9th - 12th
In this asteroid and comet worksheet, students read about the formula used to determine the brightness of asteroid. They apply this formula to solve 2 problems about asteroids and their brightness.
Lesson Plan
Voyage Solar System

Round and Round We Go — Exploring Orbits in the Solar System

For Teachers 5th - 8th Standards
Math and science come together in this cross-curricular astronomy lesson plan on planetary motion. Starting off with a hands-on activity that engages the class in exploring the geometry of circles and ellipses, this lesson...
Lesson Plan
Curated OER

What Is Hyperbolic Geometry?

For Teachers 9th - 10th
Ninth graders discuss the concept of hyperbolic geometry. They complete Internet geometry activities and write essays comparing and contrasting hyperbolic geometry to Euclidean geometry.
Lesson Plan
Curated OER

Introduction to Parallel Lines in Euclidean Space and in Spherical Space

For Teachers 8th
Eighth graders are introduced to the basic concepts of Geometry and their definitions in Euclidean space. They draw and define the following terms: point, line, and line segment. Students also define the terms colliner and...
Lesson Plan
Curated OER

The Big Bang Theory

For Teachers 10th - 12th
Young scholars will use scientific reasoning to formulate ideas about the formation of the universe using the Big Bang Theory. The use of critical thinking skills is part of the activity and the foundation of the scientific method will...
Worksheet
Curated OER

Compare Numbers to 200

For Students 2nd
In this number comparison worksheet, 2nd graders compare two and three digit numbers to 200 in 6 word problems. They compare up to four numbers in each problem.
Activity
TeachEngineering

Teach Engineering: Linear Equations Game

For Teachers 8th - 9th
Students groups act as aerospace engineering teams competing to create linear equations to guide space shuttles safely through obstacles generated by a modeling game in level-based rounds. Each round provides a different configuration of...
eBook
Mathigon

Mathigon: Algebra: Arithmetic and Geometric Sequences

For Students 9th - 10th Standards
This lesson focuses on arithmetic and geometric sequences using several examples and practice exercises.