A motivating activity is coupled with the use of algebra to explore the process for identifying the value of an angle. Somehow, it feels like a bit like magic when Sal shows the solution for the final problem. Also, it would be...

While exploring the concept of transversals, Sal discusses corresponding angles, congruent angles, and opposite/vertical angles. He provides a thorough summation of these mathematical concepts. It is the first installment in a series...

A motivating activity is coupled with the use of algebra to explore the process for identifying the value of an angle. Somehow, it feels like a bit like magic when Sal shows the solution for the final problem. Also, it would be...

While exploring the concept of transversals, Sal discusses corresponding angles, congruent angles, and opposite/vertical angles. He provides a thorough summation of these mathematical concepts. It is the first installment in a series...

Beginning with problems 1-7, Sal works on the next section of the practice SAT from The Official SAT Study Guide (page 611). The problems include simple algebraic equations, square roots, word problems, and graphing.

The final video of the SAT practice series takes students through increasingly complicated algebra and geometry problems, but Sal works steadily through each mathematical process. At the end of the video he tells students that they are...

So you have a transversal line intersecting two parallel lines and you are looking for a value that would make two corresponding angles congruent. You have all the information needed to write an equation to find the value. So write that...

So you have a transversal line intersecting two parallel lines and you are looking for a value that would make two corresponding angles congruent. You have all the information needed to write an equation to find the value. So write that...

In this angle instructional activity, eighth and ninth graders explore angles made using parallel lines and a transversal. They identify the types of angles and the characteristics of each one. Puils create drawings that illustrate angle...

Learners review pairs of angles: adjacent, complementary, supplementary, linear, and vertical. They create flashcards by sketching pairs of lines that appear to be parallel with a transversal. They identify pairs of angles by their...

Upper graders and middle schoolers use a diagram to give examples vertical angles, alternate interior angles, and alternate exterior angles, find the degree measure of multiple angles, and draw and label a pair of complementary vertical...

Upper-elementary and secondary learners use maps to solve word problems showing measurements of angles. They write an expression describing a relationship and identify and label pairs of alternate exterior angles. Pupils solve four...

In this pre-algebra review worksheet, students solve 17 short answer and graphing problems. Students solve equations and inequalities. Students graph the solution to an inequality. Students find unknown angles of polygons and of two...

There are two parallel lines intersected by one straight line, what's that one line called? A transversal. There are a few more things to know about transversal lines and the angles they create. What are vertical angles? Are they...

Middle schoolers identify all pairs of angles formed from parallel lines and a transversal. They use the definitions of alternate interior, alternate exterior and corresponding angles to determine the value of given angles. This one-page...

Young scholars identify the measurement of angles formed by parallel lines and a transversal. They identify alternate interior, alternate exterior, corresponding, vertical, and supplementary angles. This two-page activity contains 32...

Middle and high schoolers construct parallel lines cut by a transversal using the Geometer's Sketchpad. They measure angles formed, compare angle measurements, explore various activities on Geometer's Sketchpad, and complete a worksheet.

Learners determine angle measurement by identifying properties of interior angles, exterior angles, vertical angles and supplementary angles. They justify their answers. This two-page instructional activity contains 23 problems.

Based on two sets of parallel lines intersected by a transversal, your young geometers determine the measures of 10 angles by applying the definitions of vertical, corresponding, alternate interior, and alternate exterior angles. When...

In this using equations to find missing angles/solve transversals learning exercise, student solve 6 short answer problems. Students find unknown angle measures of polygons using equations. Students find angle measures of angles created...

In this parallel lines instructional activity, students solve 13 short answer and fill in the blank problems. Students determine which lines are parallel given a statement such as if these angle measures are equal then which lines are...

In this angle measures worksheet, students solve 9 short answer problems. Students find values for x and y given two parallel lines cut by a transversal. Students use alternate interior, supplementary, and exterior angles to find x and y.

In this parallel and perpendicular lines worksheet, students identify angles formed by these lines.  They list and find the measurement of interior angles, exterior angles, alternate interior, alternate exterior and corresponding...

Students explore the concept of lines.  In this lines lesson, students construct two lines cut by a transversal on the calculator.  Students measure angles and determine the relationship of vertical angles, alternate interior angles,...