This concept introduces students to alternate interior angles and how to use them to determine whether or not lines are parallel.
This video gives more detail about the mathematical principles presented in Alternate Interior Angles.
This video shows how to work step-by-step through one or more of the examples in Alternate Interior Angles.
Eleven question quiz. Students need to identify alternate interior angles and justify that they are in fact alternate interior angles. Students will solve for missing alternate interior angles using simple arithmetic and algebraically.
A list of student-submitted discussion questions for Alternate Interior Angles.
How did Eratosthenes use alternate interior angles to prove the earth is round?
This study guide reviews angles formed by transversals and postulates and theorems of parallel and perpendicular lines.