Curated OER
Finding the Area of Polygons
Third graders are exposed to finding the area of polygons by decomposing figures and recomposing them into rectangles. This strategy allows children to expand on their prior knowledge of constructing shapes by rearranging parts into...
University of Colorado
Are All Asteroids' Surfaces the Same Age?
There are more than 600,000 asteroids in our solar system. Pupils analyze images of two asteroids in order to determine if they are the same age. They count craters for each asteroid and compare numbers.
Curated OER
ExplorA-Pond: 6th Grade Area and Random Number Tables
Sixth graders estimate surface area of a pond using a random number table.
Curated OER
Easy and Artistic Printmaking Using Mixed Media Materials
Students explore printmaking which began with the ancient Chinese who carved seals from stone, inked them and used the seals as identification symbols. They produce a print in this lesson.
Curated OER
Paper Airplane Activity
Ninth graders select and build one of five different paper airplane designs and test them for distance and for time aloft. Part of this activity is designed to explore NASA developed software, FoilSim, with respect to the lift of an...
Curated OER
Stampin' Ground
Students anticipate the results of using stamps to create patterns and visual effects through repetition. They enhance their understanding of positive and negative space. Also, investigation is done on fabrics and products made in...
Curated OER
Introduction to Slope Fields
Students plot slope fields. In this introduction to slope fields lesson, students plot 12 slope fields for given differential equations.
Curated OER
Pythagorean Theorem
Pupils explore how the Pythagorean Theorem works and how to apply it.
Curated OER
Pythagorean Theorem
Students are introduced to the Pythagorean theorem. They use three different activities that give students the opportuntiy to observe triangles, and use the Pythagorean theorem and practice different ways of determining areas of...
Curated OER
Causation-Exploration and World Trade
Students investigate spice trade. In this world history instructional activity, students identify various spices in jars and their places of origin. Students listen to a lecture on how spices came to countries in Europe. Students...
Curated OER
Square Numbers Closure Activity
Students discuss square numbers. In this math lesson, students find square numbers and support their answers. Students find sums and products that are square numbers.