Curated OER
Place Value
First graders practice place value by completing problems that allow them to group 10 items together to create groups of 10 and see what is left over. In this place value lesson plan, 1st graders use cups to put 10 items in them, and...
Curated OER
Mathematics Within: Algebraic Processes and Its Connections to Geometry
Fifth graders discover the connections between algebra and geometry. With a focus on arrays and factors, they are introduced to multiplication. They develop an array for multiples of 2 through 10 and identify the factors of each row....
National Wildlife Federation
By Air, Land, or Sea: The Formation and Location of Our Natural Resources
Coal forms from the ancient remains of plants that were alive on Earth before the dinosaurs! Scholars use their t-charts from the previous instructional activity over resources and research to determine if their information is correct....
Curated OER
Stargazing Astronomy: A Ceiling Full of Stars
Students make an observe a planetarium using a can with nail holes, black paper and a flashlight.