Try this Year 6 Angles in a Triangle Teaching PowerPoint which contains a complete teaching sequence to make your job a little easier. The PowerPoint explains how the angles of different types of triangles work, and then the children are asked to use this information to identify the value of some angles. The questions throughout the PowerPoint allow you the opportunity to assess children's understanding and can influence your decision about the children's level of independent work. Once you have completed this activity why not give our supporting activities for this lesson a try?