This animated Google Slide lesson and set of Guided Notes are designed to bring energy and clarity to your classroom while helping students master key concepts in grade 8 math. With visually engaging animations and an easy-to-follow structure, the lesson begins with a clear objective and an essential question to guide learning and focus students on the key takeaways. These interactive slides and notes template are perfect for whole-class instruction, small-group work, or independent learning! You can view the lesson here.

In this video lesson we will learn about interior and exterior angles of triangles. We will review and understand that a triangle is a closed polygon with sides, angles, and vertices. I will introduce an exterior angle of a triangle. We will learn about the Triangle Sum Theorem. We will use the Triangle Sum Theorem to find a missing angle measure and we will use it to determine if three angle measures can form a triangle. We will use a part to part to part ratio to find missing angle measures. We will learn about the Exterior angle of a triangle and that it is equal to the sum of the two remote interior angles. Student practice is embedded in the lesson with modeled exemplar solutions.

Magic of Math website