This resource will help you teach children about finding angles in different types of triangles, using specific knowledge such as the total of the angles in a triangle and hatch marks. This Year 6 Angles in a Triangle - Special Cases Modelling PowerPoint includes an introductory question that covers essential learning, before providing a range of fluency, reasoning and problem-solving questions. Each question is followed by an answer slide that provides instant feedback for your children. Use on your whiteboard to complement your teaching.