Geometry Snacks is a mathematical puzzle book filled with geometrical figures & questions designed to challenge confuse & ultimately enlighten enthusiasts of all ages Each puzzle is carefully designed to draw out interesting phenomena & relationships between the areas &
Dimensions of various shapes Furthermore unlike most puzzle books the authors offer multiple approaches to solutions so that once a puzzle is solved there are further surprises insights & challenges to be had As a teaching tool Geometry Snacks enables teachers to promote deep thinking & debate over how to solve geometry puzzles Each figure is simple but often deceptively tricky to solve
- allowing for great classroom discussions about ways in which to approach them By offering numerous solution approaches the book also acts as a tool to help encourage creativity & develop a variety of strategies to chip away at problems that often seem to have no obvious way in Contents 1 What fraction is shaded?2 Find the missing angle 3 What is the area?4 Prove it 5 Sangaku Ed Southall is a teacher trainer at Huddersfield University in the UK & the author of Yes But Why? Teaching for Understanding in Mathematics Ed has taught mathematics for 14 years in secondary schools both in the UK & the Middle East He has developed a large following online as solvemymaths on twitter where he regularly posts mathematical puzzles Vincent Pantaloni is a French mathematics high school teacher since 2000 He teaches in Orleans in French but also in English to the European & International Sections With these students he has developed a teaching based on cooperative problem solving He believes that searching & sharing strategies for complex problems in teamwork helps students in building a stronger mathematical knowledge He is also a teacher trainer specialised in the use of new technologies & flipped classroom & a member of different research groups He posts about mathematics on twitter panlepan & in French on his website Mathzani