Pupils study angle measurements between different types of angles associated with parallel lines and transversals. The independent practice asks pupils to identify the types of angles in a diagram and to determine the measure of angles. 

Concepts

parallel lines with a transversal, alternate interior angles, corresponding angles, parallel lines

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Additional Tags

math

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Instructional Ideas

• Use the video as the homework portion in a flipped classroom environment
• Have the pupils determine other relationships between angles formed, such as which angles are supplementary

Classroom Considerations

• Individuals that have difficulty with spatial relationships many times have problems identifying the types of angles associated with parallel lines and transversals
• The types of angles exist even if the lines are not parallel; the parallel lines determine the measurements
• The lesson is the tenth installment of an 11-part unit on congruence and similarity

Pros

• Provides definitions of types of angles associated with parallel lines and transversals
• The diagrams in the homework provide the parallel lines in different orientations

Cons

• The lesson relies only on direct instruction to deliver the material

Common Core

8.G.A.5 MP6 MP8