Curated OER
The Battle for Ultimate Power
Students gain an understanding of how the powers of 10 and scientific notation can be used to represent the scale of things in the universe. They relate the number of stars in the universe to the number of grains of sand on Earth's beaches.
Curated OER
The North (Wall) Star
Young scholars engage in a lesson which shows them that celestial navigation is the art and science of finding one's geographic position by means of astronomical observations, particularly by measuring altitudes of celestial objects -...
Waterloo Mathematics
Number Sense and Numeration: Ratio and Rate
Seventh-graders solve 20 various types of problems related to ratio and rate. They write ratios in simplest form for each given statement, to compare the area of two figures, and write two ratios equivalent to each ratio. Pupils express...
Curated OER
Mathematics at the Frontier of Astronomy
Young scholars explore the different types of measurements used in astronomy. In this space science lesson, students explain the relationship between planets' orbits and distance from the sun using Kepler's Laws. They discuss how math...