Lesson Plan
Curated OER

Ornithology and Real World Science

For Teachers 5th - 6th
Double click that mouse because you just found an amazing instructional activity! This cross-curricular Ornithology instructional activity incorporates literature, writing, reading informational text, data collection, scientific inquiry,...
Lesson Plan
Curated OER

Identities and Trigonometric Values

For Teachers 9th - 11th
Students solve trigonometric equations. In this precalculus activity, students prove trigonometric identities using the Pythagorean Theorem. They apply the addition formulas for sine and cosine to prove different identities.