Daniel Grieser is Professor of Mathematics at Carl von Ossietzky Universität Oldenburg. He works in geometry, analysis and combinatorics. He won a gold medal at the International Mathematics Olympiad and in 2014 he received the Ars Legendi Faculty award for excellent teaching, a national prize awarded in Germany, for developing the course on which this book is based.

• Introduction.- 1 First explorations.- 2 Recursion – a fundamental idea.- 3 Mathematical induction.- 4 Graphs.- 5 Counting.- 6 General problem solving strategies.- 7 Logic and proofs.- 8 Elementary number theory.- 9 The pigeonhole principle.- 10 The extremal principle.- 11 The invariance principle.- A A survey of problem-solving strategies.- B Basics on sets and maps.- List of symbols.- Glossary.- Lists of problems, theorems and methods.- Hints for selected exercises.- References.

“This book sets out to teach the reader to be a successful problem-solver and to be able to produce our own mathematical proofs. In a carefully designed and well-documented journey we are taken through a wide variety of problems … . This is a very clear and helpful book. It would be a useful addition to every teacher’s repertoire and a very helpful source of interesting problems to share with students at all levels.” (Peter Hall, The Mathematical Gazette, Vol. 103 (557), July, 2019)“Exploring Mathematics can be used as an introduction to mathematical problem-solving, but may be better used as a supplement. I personally found that this systematic review of mathematical topics was refreshing, helping to fill gaps in my problem-solving toolkit. The reader may find it beneficial to use the book to review the fundamentals and enrich their problem-solving knowledge.” (Jack Chen, MAA Reviews, January, 2019)​

Daniel Grieser is Professor of Mathematics at Carl von Ossietzky Universität Oldenburg. He works in geometry, analysis and combinatorics. He won a gold medal at the International Mathematics Olympiad and in 2014 he received the Ars Legendi Faculty award for excellent teaching, a national prize awarded in Germany, for developing the course on which this book is based.

• Introduction.- 1 First explorations.- 2 Recursion – a fundamental idea.- 3 Mathematical induction.- 4 Graphs.- 5 Counting.- 6 General problem solving strategies.- 7 Logic and proofs.- 8 Elementary number theory.- 9 The pigeonhole principle.- 10 The extremal principle.- 11 The invariance principle.- A A survey of problem-solving strategies.- B Basics on sets and maps.- List of symbols.- Glossary.- Lists of problems, theorems and methods.- Hints for selected exercises.- References.

“This book sets out to teach the reader to be a successful problem-solver and to be able to produce our own mathematical proofs. In a carefully designed and well-documented journey we are taken through a wide variety of problems … . This is a very clear and helpful book. It would be a useful addition to every teacher’s repertoire and a very helpful source of interesting problems to share with students at all levels.” (Peter Hall, The Mathematical Gazette, Vol. 103 (557), July, 2019)“Exploring Mathematics can be used as an introduction to mathematical problem-solving, but may be better used as a supplement. I personally found that this systematic review of mathematical topics was refreshing, helping to fill gaps in my problem-solving toolkit. The reader may find it beneficial to use the book to review the fundamentals and enrich their problem-solving knowledge.” (Jack Chen, MAA Reviews, January, 2019)​

Daniel Grieser is Professor of Mathematics at Carl von Ossietzky Universität Oldenburg. He works in geometry, analysis and combinatorics. He won a gold medal at the International Mathematics Olympiad and in 2014 he received the Ars Legendi Faculty award for excellent teaching, a national prize awarded in Germany, for developing the course on which this book is based.

• Introduction.- 1 First explorations.- 2 Recursion – a fundamental idea.- 3 Mathematical induction.- 4 Graphs.- 5 Counting.- 6 General problem solving strategies.- 7 Logic and proofs.- 8 Elementary number theory.- 9 The pigeonhole principle.- 10 The extremal principle.- 11 The invariance principle.- A A survey of problem-solving strategies.- B Basics on sets and maps.- List of symbols.- Glossary.- Lists of problems, theorems and methods.- Hints for selected exercises.- References.

“This book sets out to teach the reader to be a successful problem-solver and to be able to produce our own mathematical proofs. In a carefully designed and well-documented journey we are taken through a wide variety of problems … . This is a very clear and helpful book. It would be a useful addition to every teacher’s repertoire and a very helpful source of interesting problems to share with students at all levels.” (Peter Hall, The Mathematical Gazette, Vol. 103 (557), July, 2019)“Exploring Mathematics can be used as an introduction to mathematical problem-solving, but may be better used as a supplement. I personally found that this systematic review of mathematical topics was refreshing, helping to fill gaps in my problem-solving toolkit. The reader may find it beneficial to use the book to review the fundamentals and enrich their problem-solving knowledge.” (Jack Chen, MAA Reviews, January, 2019)​