Learning and Teaching Mathematics, 27, December 2019
- From the Editor. Duncan Samson
- Recognising patterns using the 100 grid. Tom Penlington
- The girl who saved the king of Sweden. Duncan Samson
- On the areas of triangles bounded by non-parallel sides and diagonals of a trapezium. Yiu-Kwong Man
- Introducing QR coding into the mathematics classroom. Michal Seri & Hanna Savion
- Using real world contexts to explore fundamental mathematical ideas. Eric A. Pandiscio
- An elementary proof of Ptolemy's theorem. Yiu-Kwong Man
- A look back: The International Mathematics Olympiad, 1959. Alan Christison
- More area, perimeter and other properties of circumscribed isosceles trapeziums and cyclic kites. Michael de Villiers
- Proof without words: Parallel lines passing through the points of intersection of two circles. Moshe Stupel & Victor Oxman
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