Sum and Difference Identities Martin Luther King Day Activity is an engaging color-by-number activity. This activity will help your PreCalculus or Algebra III/Trigonometry students practice angle sum and difference identities and have fun while doing it! Students will solve 12 problems by finding exact values on trigonometric expressions. ➡️ Students of all ages love to color, so they will be super excited to color this MLK tribute scene. An added bonus is that you can use the finished produ