Unit Circle Practice
Authored by Tiffany Jones
Mathematics
10th - 11th Grade
CCSS covered
Used 14+ times
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This quiz focuses on the unit circle, a fundamental concept in trigonometry that bridges algebra and advanced mathematical analysis. The questions assess students' mastery of degree-to-radian conversions, coordinate identification for special angles, and evaluation of trigonometric functions including sine, cosine, tangent, cotangent, and secant at key reference angles. Students need a solid understanding of the unit circle's structure, where the x-coordinate represents cosine values and the y-coordinate represents sine values, along with memorization of exact values for special angles like 30°, 45°, 60°, and their multiples in all four quadrants. The complexity and scope of these problems place this material squarely at the Grade 10-11 level, typically covered in Algebra 2 or Pre-Calculus courses. Students must demonstrate fluency with radical expressions, understand the periodic nature of trigonometric functions, and apply knowledge of reference angles to determine signs in different quadrants. Created by Tiffany Jones, a Mathematics teacher in the US who teaches grades 10-11. This quiz serves as an excellent tool for formative assessment, allowing teachers to quickly gauge student understanding of unit circle fundamentals before moving into more complex trigonometric applications. The comprehensive nature of the questions makes it ideal for review sessions before major assessments, homework assignments to reinforce memorization of key values, or warm-up activities to activate prior knowledge at the beginning of trigonometry units. Teachers can use this quiz to identify specific areas where students need additional practice, whether in angle conversions, coordinate identification, or function evaluation. The quiz aligns with Common Core standards HSF-TF.A.2 (explaining how the unit circle determines trigonometric values) and HSF-TF.A.3 (using special triangles to determine geometrically the values of sine, cosine, and tangent), providing essential foundational knowledge that students will apply throughout their study of trigonometric functions, identities, and equations.
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39 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the exact value of sin 150°
Tags
CCSS.HSF.TF.A.2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is a complete circle in radians?
Tags
CCSS.HSF.TF.A.2
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is half a circle in radians?
Tags
CCSS.HSF.TF.A.2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What are the coordinates of 210° on the unit circle?
Tags
CCSS.HSF.TF.A.2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the exact value of sin 210°
Tags
CCSS.HSF.TF.A.2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the exact value of cos 330°
Tags
CCSS.HSF.TF.A.2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the exact coordinates of 3π/4 on the unit circle?
Tags
CCSS.HSF.TF.A.2
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