Argument 3 – Meetkunde, J. P. Daems, E. Jennekens (ISBN 9789045533643, de boeck)

Last year I decided to read this book on geometry used in the third year of high school to help my son as this book is used in school. He changed class in November which meant less mathematics was needed but parts of the book remained relevant and even though the teacher had her own handouts, some of the exercises came straight from this book. We didn’t manage to work through the book last year so I finished the remainder on my own at the start of the current school year and today I solved the last exercise. For me it was just to catch up with all the geometry I skipped while I was in third grade and to see what I actually missed. I can say I now have a better knowledge of the existence of some theorems and how the theory is built up. I also solved most of the problems in the book so I am actually better at geometry then I imagined. Nevertheless it is still not my favourite branch of mathematics. The last few chapters make the bridge to algebra and were more fun for me. I also had some occasional fun with some of the more traditional geometry problems in the book but overall I don’t think I will be returning to the book except for the purpose of using some examples to create geometric shapes on a webpage or in a Jupyter notebook. Still, I consider this a good text book to learn basic geometry.