Double Angle and Half Angle Identity Formulas Self Checking Partner Worksheet

Looking for an engaging assignment to practice the double angle and half angle identity formulas? These self-checking partner worksheets will have students use the double angle and half angle identities to find the value of an angle. This assignment also encourages students to work collaboratively, engage in discussion, and check their work. Assign this activity with no prep from you, and watch as your students receive immediate feedback while they practice their skills!

How it works:

• Assign students a partner and have them choose who will complete column A and column B
• Students will work on their own unique problems, and compare their answers with their partner. If the solutions are the same, they are correct and may move on. If they disagree, have them trade papers and check each other’s work.

Content features:

Version A

• Students will be given the value of a trig function of θ in a certain quadrant
• Students will have to solve for either sin2θ, cos2θ or tan2θ

Version B

• Students will be given the value of a trig function of θ in a certain quadrant
• Students will have to solve for sin θ/2, cos θ/2, tan θ/2

This Double and Half Angle Identities Formulas resource is a downloadable PDF that includes:

• TWO partner worksheets, each with 9 questions per student
• Recording sheet to organize each student’s work
• All answer keys

Are your students tired of boring worksheets? This resource is great to assign for additional practice. It also makes a great activity to leave with a substitute since students will be able to check their own work! These Double Angle and Half Angle Identities Formulas partner worksheets promote discussion among partners and encourage students to check for their mistakes.

The best part? These two sets of worksheets are differentiated for you! You can assign both versions to double the practice as students strengthen their skills, modify work for classes at different levels, or assign to specific students to meet their individual needs.

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This file is to be used by the buyer only. If you intend to collaborate with colleagues please add the appropriate amount of licenses to your order. This file can only be shared with students through secure avenues (Google Classroom, e-mail, password protected sites) and should not be posted on public websites such as a district webpage. Not for use on commercial platforms.