This video recaps all the work which was covered in Year 7 to enable the rest of the work at a Year 8 level to take place. It looks at angles in a triangle, classifying triangles by sides and angles as well as the exterior angles rule. There are lots of examples. The video concludes with a discussion of parallel lines and what I call FUZX. Most other people would call the angles: corresponding, alternate, opposite and co-interior.