Lesson Plan
Curated OER

Earth System Science

For Teachers 4th - 6th
Students explore the Earth and its ability to support life. They discuss the geosphere and the water cycle and complete the Water Wonders activity. After completing the activity, they respond in their journals and reflect upon the...
Lesson Plan
Curated OER

Unit Circle and Triangle

For Teachers 9th - 11th
Students apply the Unit Circle to solve ratios of triangles. In this geometry lesson, students derive the different ratios of a triangle using the Pythagorean Theorem. They find the angles of a unit circle using a right triangle.