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This Addition and Subtraction Formulas 2 lesson plan also includes:
Knowing the addition formulas allows for the calculations of double and half formulas. The fourth installment of 16 has the class use the addition formula to develop the double angle trigonometric formulas. Using the double formula, class members derive the half angle formula. Pupils use the new formulas to find trigonometric values in the independent practice.
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CCSS:
Designed
Concepts
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Instructional Ideas
- Have the class create a table with all of the addition and subtraction formulas
- Lead a discussion on how to determine which side of an identity to work with to verify the other side
Classroom Considerations
- The class should know the sum and difference formulas
Pros
- Answer keys show the steps required to solve the problem
- The lesson plan provides suggested scaffolding
Cons
- None