IGCSE Maths 0580 Chapter 19 Symmetry complete lesson

Lessons: the 8 lessons follow the same order as your other chapters, each with the 2-minute exam-style question after the challenge slide.

Line Symmetry
Rotational Symmetry
Symmetry in Three Dimensions
Chords and the Centre
Tangents from a Point
The Angle in a Semicircle
Angles at the Centre & Cyclic Quadrilaterals
The Alternate Segment Theorem

The diagrams on the slides (polygons with mirror lines, cuboid planes, chord, tangent and circle-theorem diagrams) are new drawings, not copies of the book’s figures. Many questions come from the book, and their answers match the answer key.

Worksheets: 2 pages per lesson (16 pages) in matching blue, using the slide questions and including the exam question, plus a teacher answer key with the same layout. The circle questions are written out in words, so students sketch their own diagrams.

As with Chapter 20, the 40-minute plan on each title slide doesn’t count the 2-minute exam question.

Files are in your outputs folder:

Chapter19_Symmetry_Lessons.pptx
Ch19_Student_Worksheets_Lessons_1-8.pdf
Ch19_Worksheets_Teacher_Answer_Key.pdf