Curated OER
Identities and Trigonometric Values
Students solve trigonometric equations. In this precalculus lesson, students prove trigonometric identities using the Pythagorean Theorem. They apply the addition formulas for sine and cosine to prove different identities.
Curated OER
Ideas for Elementary Language Arts and Social Studies
Middle schoolers read a newspaper, then draw a picture.
Curated OER
Ruby Bridges: One Little Girl's Brave Act
Second graders examine the life of Ruby Bridges. In this bravery lesson, 2nd graders read the story of Ruby Bridges and discuss Ruby's actions and decisions.
Curated OER
Pitch
Second graders investigate the concept of pitch and how it can be changed in its duration and frequency. They use rubber bands and cardboard to demonstrate different sound patterns. Students are asked to recognize how vibration varies...
Curated OER
Tortillas
Middle schoolers convert recipes for tortillas. They calculate the amounts of ingredients as they convert recipes and write an explanation of the task to demonstrate their calculations. After reviewing their calculations, they...
Curated OER
Math: Christmas Count Down
Students use various tools to calculate the number of days before Christmas. Among the tools are number lines, calendars, and the Internet. Each day, a student visits a Christmas Countdown Website to report the days left. At the end of...