Angle Sum Teacher Resources
Find Angle Sum lesson plans and worksheets
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Inscribed Quadrilaterals in Circles: Lesson
2 mins 9th - 11th CCSS: Adaptable
Find supplementary information about inscribed angles. A section of a large geometry playlist introduces the relationship of angles in an inscribed quadrilateral. The presentation works through examples that use the relationship between...
What Do We Have in Common? Discover the Properties of the Diagonals of Quadrilaterals
9th - 12th CCSS: Designed
Common traits often bring people together; this is true for quadrilaterals, too. Pupils get together in groups based on index cards showing quadrilaterals, which they receive as they enter the classroom. They decide what the...
Quadrilaterals: 2 dimensional shapes with 4 straight sides
1st - 3rd
Which shapes are considered quadrilaterals? View and learn that two dimensional shapes with four straight sides are considered quadrilateral. The rhombus, parallelogram, rectangle, and trapezium are only few of the fabulous shapes shown...
Classifying Quadrilaterals in the Coordinate Plane: Lesson
4 mins 8th - 11th CCSS: Adaptable
Coordinate the classification of quadrilaterals. Given the definitions of special quadrilaterals, a portion of a geometry playlist highlights ways to classify a quadrilateral. The video takes information from figures on a coordinate...
Proving a Quadrilateral Is a Parallelogram: Lesson
3 mins 8th - 11th CCSS: Adaptable
If it has the properties of a parallelogram, it must be a parallelogram. A segment of a playlist on geometry presents the converses of the properties of a parallelogram. Given a quadrilateral with specific characteristics, the video...
Create, Classify, and Sort Quadrilaterals
4th CCSS: Adaptable
Quadrilaterals can be quirky! Fourth graders use geoboards and bands to create four-sided figures. They analyze the attributes such as angle size and presence of parallel sides. As a result they learn to differentiate among rectangles,...