Angle Properties of Special Triangles

This lesson covers the full range of attainments on the angle properties of special triangles. It starts by recapping prior knowledge on angles on a straight line, around a point and basic angles in triangles before moving onto the angle properties of a variety of triangles. This lesson allows the topic to be differentiated for a variety of attainment levels and could easily be adapted to meet the needs of higher or lower attaining groups through missing out specific examples.

The lesson focuses on the angle properties of isosceles and equilateral triangles. If this is the first lesson looking at angles in a triangle I recommend you spend a lesson first looking at basic angle facts in a triangle. I do have a lesson on this available.
This lesson spends time really allowing students to build an understanding of angle properties of isosceles and equilateral triangles. Challenge comes through interleaving of previous learning on angles and through the involvement of forming and solving a variety of equations.

The lesson includes;
Starter
Introduction to the topic in small chunks
Recapping of prior knowledge
Opportunities to practice basic skills through a collaborative activity.
Clear modelling through “I do” and “You Do” examples.
Multiple choice questions to draw out misconceptions.
Differentiated worksheet.
A challenge question.

The lesson includes the solutions and is fully animated which will make it perfect for delivering live remote lessons.