# À propos de Mathigon

Everything in our world follows mathematical laws: from the motion of stars and galaxies to the transmission of phone signals, bus timetables, weather prediction and online banking. Mathematics lets us describe and explain all of these examples, and can reveal profound truths about their underlying patterns.

Unfortunately the school curriculum often fails to convey the **incredible power** and **great beauty** of mathematics. In most cases, school mathematics is simply about memorising abstract concepts: a teacher (or a video, or a mobile app) explains how to solve a specific kind of problem, students have to remember it, and then use it to solve homework or exam questions. This has changed very little during the last century, and is one of the reasons why so many students dislike mathematics.

“It is a miracle that curiosity survives formal education.”

– Albert Einstein

In fact, the *process* of studying mathematics is often much more important than the actual content: it teaches **problem solving**, logical reasoning, generalising and abstraction. Mathematics should be about **creativity, curiosity, surprise and imagination** – not memorising and rote learning.

Mathigon is part interactive textbook and part virtual personal tutor. Using **cutting-edge technology** and an **innovative new curriculum**, we want to make learning mathematics more active, personalised and fun.

## Active Learning

Rather than telling students how to solve new kinds of problems, we want them to be able to **explore and “discover”** solutions on their own. Our content is split into many small sections, and students have to **actively participate** at every step before the next one is revealed: by solving problems, exploring simulations, finding patterns and drawing conclusions.

We built many new types of **interactive components**, which go far beyond simple multiple choice questions or textboxes. Students can draw paths across bridges in Königsberg, run large probability simulations, investigate which shapes can be used to create tessellations, and much more.

## Personalisation

As users interact with Mathigon, we can slowly build up an internal model of how well they know different related concepts in mathematics: the **knowledge graph**. This data can then be used to **adapt and personalise** the content – we can predict where students might struggle because they haven’t mastered all the prerequisites, or switch between different explanations based on students’ preferred learning style.

A **virtual personal tutor** guides you step-by-step through explanations and gives tailored hints or encouragement in a **conversational interface**. Students can even ask their own questions.

## Storytelling

Using Mathigon requires much more effort and concentration from students, compared to simply watching a video or listening to a teacher. That’s why it is important make the content as **fun and engaging** as possible.

Mathigon is filled with **colourful illustrations**, and every course has a **captivating narrative**. Rather than teaching mathematics as a collection of abstract facts and exercises, we use real life applications, puzzles, historic context, inter-disciplinary connections, or even fictional stories to make the content come alive. This gives students a clear reason why what they learn is useful, and makes the content itself much more memorable.

All these goals are difficult to achieve in a classroom, because a single teacher simply can’t offer the individual support required by every student. Of course, we don’t want to replace schools or teachers. Mathigon should be used as a supplement: by students who are struggling and need additional help, students who want to go beyond what they learn at school, or even by teachers in a blended learning environment.

The ideas of *active learning* and *personalised education* are nothing new – teachers and researchers have been experimenting and writing about it for many years. Mathigon is one of the first implementations on a fully digital platform, which means that we can reach a much larger number of students. Of course, we are just getting started and there is still a long way to go.

One of the key underlying concepts is **constructivism**, the belief that students need to “construct” their own mental models of the world, through independent exploration, discovery and project-based learning. Constructionism was first developed by psychologist Jean Piaget (1896 – 1980), and then extended by mathematician, computer scientist and educator **Seymour Papert** (1928 – 2016).

There is plenty of research and evidence supporting this approach to teaching mathematics, and many existing ideas or examples we use as inspiration:

### What Makes People Engage With Math – TED Talk

Grant Sanderson, 3blue1brown (2020)

### Numbers at play: dynamic toys make the invisible visible

Scott Farrar, May-Li Khoe, Andy Matuschak (2017)

### The 2 Sigma problem: The Search for Methods of Group Instruction as Effective One-to-One Tutoring

Benjamin Bloom (1984)

### Do schools kill creativity? – TED Talk

Ken Robinson (2006)

### Media for Thinking the Unthinkable

Bret Victor (2013)

## Essays

### The Value of Teaching Mathematics

### Mathematics Outreach and Popularisation

## Content and Engineering

## Philipp Legner

Philipp studied mathematics at Cambridge University, and mathematics education at the UCL Institute of Education in London. He founded Mathigon while volunteering with outreach projects in Cambridge.

Previously, Philipp worked as software engineer at Google, Bloomberg, Wolfram Research and Goldman Sachs. He consults for educational organisations like MoMath and IMAGINARY, and regularly speaks at conferences all around the world.

## David Poras

David studied mathematics at Vassar College and education at the University of Massachusetts. He is a middle school math teacher at Weston Middle School in Weston, MA. In his 20+ years at the school, David has held a variety of leadership roles. In 2017, he was a runner-up for the Rosenthal Prize for Innovation and Inspiration in Math Teaching awarded by MoMath.

## Eda Aydemir

Eda studied mathematics education at Bogazici University and has master’s degrees in Educational Supervision and Instructional Design. She has been teaching mathematics since 2003 and has been organizing Math Events, Exhibitions, and Math Weeks since. Eda has also spoken at several educational conferences in Turkey, and she is writing about math education at funmathfan.com.

## Advisory Board

## Cindy Lawrence

Cindy is the Executive Director and CEO of MoMath, the National Museum of Mathematics in New York City, where she works to change public perceptions of mathematics.

## Conrad Wolfram

Conrad is the co-founder and CEO of Wolfram Research Europe, the makers of *Mathematica* and *Wolfram|Alpha*. He also founded the *Computer-Based Math Project*, to reform maths education.

## James Tanton

James is the founder of *Global Math Week* and mathematician-at-large for the Mathematical Association of America. He is committed to sharing the delight and beauty of the subject.

## Rich Miner

Rich is a co-founder of Android, partner at Google Ventures, and director at Google, where he works on new products for students and teachers.

## Sarah Lee

Sarah is a former startup founder with over 16 years of experience scaling exceptional education programs and schools, and coaching founding teams of EdTech Startups globally.

## Simon Singh

Simon is the author of bestselling books like “Fermat’s Last Theorem”, “The Code Book” and “The Simpsons and Their Mathematical Secrets”, and founder of the charity *Good Thinking*.

## Translations

**Arabic:**Jad Succari**Catalan:**David Virgili**Chinese:**iuway, Kaka, jexchan**German:**Harald March**Italian:**Michela Riganti, Letizia Diamante, Antonio La Barba**Portuguese:**Hugo Tadashi**Romanian:**Claudia Dumitrascu, Ariana-Stanca Vacaretu**Russian:**Аня Никитина**Spanish:**Scott Nepple, Héctor Palacios, Carlos Ponce Campuzano, Pilar Fortuny Ayuso**Turkish:**Utku Aytaç, Can Ozan Oğuz, Ebru Nayir, Murat Uyar, Buket Eren, Eda Aydemir, Begüm Gülşah Çaktı, Ayşe Yiltekin, İsmail Kara**Vietnamese:**Ngo Thuy Anh Tuyet

## Volunteers and Supporters

We want to thank all these volunteers and supporters for their contributions, advice, proofreading, feedback or generous donations:

- Justin Baron
- Srikanth Chekuri
- Alison Clark-Wilson
- Dirk Eisner
- Susan Jobson
- Tim Knight
- Michal Kosmulski
- Wolfgang Laun
- Joel Lord
- Rose Luckin
- Samantha Marion
- Alex McCall
- Manuel Menzella
- Huw Mort
- Meenakshi Mukerji
- Andy Norton
- William O’Connell
- Antonella Perucca
- Anwit Roy
- Kostas Symeonidis
- Andre Wiederkehr
- Danny Yee
- Arul Kolla

- John Green
- Yi-Hsuan Lin
- Samuel Watson
- Enrico Poli
- Zach Geis
- Jack Kutilek
- leeyeewah
- Leif Cussen
- Chris Peel
- Sergei Kukhariev
- Alexander Shapoval
- Andrea Michi
- Troy Weets
- 安強 朱
- Howard Mullings
- Oleksandr Prokopenko
- Evgeny Sushko
- Israel Parancan Navarro
- Josep lluis Mata
- Valeri Jean-Pierre
- Alex Munger
- Jay Mitchell
- Denis Zuev
- Matematika Tivat
- Nafez Al Dakkak
- Amy Dai
- Clara Marx
- Kimberly Lilly
- Angela Bottaro
- Yolanda Campos
- rittersg
- Tom Leys
- Anuj More
- Srini Kadamati
- Howard Lewis Ship
- Leo
- Becca LeCompte
- Reymund Gonowon
- Axek Brisse
- Dev Karan Ahuja
- Guillaume
- Antony Mativos
- Bryan Shull
- Matthew Deren
- Razmik Badalyan
- Georgreen Mamboleo
- Yijia Wang
- Devin Wilson
- billxiong
- dacapo
- Cyril Ghys
- charlespipin

How can we make education more about exploring and creativity, rather than rote-learning and memorising, with personalised content and engaging storytelling? These **nine principles** guide our team when developing great content for learning mathematics.

## 1. Learning Should Inspire

Mathematics should inspire and empower students, not scare or confuse them. We should show the surprising beauty and great power of mathematics – and that *everyone* can “do maths”.

## 2. Tell a Story

Storytelling can motivate students, make the content more memorable, and justify why what you’re learning is important – including real-life applications, curious puzzles, or historical background. More…

## 2. Tell a Story

Rather than presenting mathematics as an abstract collection of results, we should introduce every new topic with an interesting narrative that shows students why what they are about to learn is useful and worthwhile doing. This is not just more interesting and motivating, but it also makes the content much more memorable.

Stories could be based on real-life applications (“predicting the weather”), historical events (“measuring the height of Mount Everest”), a mathematical puzzle (“which shapes tessellate”) or even fictional characters. There could even be some suspense and plot twists, where students don’t initially know where the story might lead, and are later surprised with an unexpected mathematical result.

## 3. Exploration and Creativity

Allow students to explore, be creative, make mistakes, practise critical thinking, and discover new ideas – rather than just telling them the final results and procedures to memorise. More…

## 3. Exploration and Creativity

In mathematics, the *process* of learning is often more important than the actual results and knowledge: it teaches students problem-solving, logical reasoning, critical thinking, abstraction and generalisation. These skills are transferable to many other parts of life, even if the specific mathematical topics have no real-life applications.

To make this most effective, students should be able to freely explore and be creative. With the guidance of a teacher or tutor, they should be able to discover new patterns and ideas on their own, and not just be the consumers of pre-packaged results and procedures.

## 4. Mathematics is Everywhere

We are always surrounded by mathematical patterns and relationships. Students should be able to recognise these, and harness the power of maths to solve problems in everyday life.

## 5. Not *Useful*, but *Meaningful*

Not all topics in the curriculum have to be *useful* in everyday life (neither are Mozart or Shakespeare), but every topic should be *meaningful* – because of its applications or mathematical significance. More…

## 5. Not *Useful*, but *Meaningful*

A large part of the mathematics that students learn at school won’t be **useful** in everyday life, even if they end up working as a scientist or software engineer. And that’s ok – as we’ve seen in principle 3, one of the reasons to study mathematics is to learn transferable skills like problem-solving and critical thinking. There are many other subjects in school that are also not “useful”, from Shakespeare’s Sonnets to Mozart’s Symphonies, and even Newton’s laws of motion. Instead, these subjects tell us about culture and history, or they help us understand and make sense of the world around us.

However, a lot of the *existing* mathematics curriculum is also not **meaningful** – and that *is* a problem. Rather than teaching about boring and essentially meaningless topics like long division, rationalising denominators or two-column geometry proofs, we should teach about networks, chaos, data science, cryptography, or game theory: topics which are exciting and beautiful, and which have a direct impact on all our lives. They help students better understand the world we live in, even if they are not directly useful in everyday life.

## 6. Mathematics is Visual

Equations are useful, but there are often much better representations of mathematical concepts and relationships. The content should be as visual and colourful as possible.

## 7. Intuition over Rigor or Fluency

Rigor is an important part of mathematics, and there is also a place for practising fluency – but the main goal should be to develop intuition, deep understanding, and general numeracy. More…

## 7. Intuition over Rigor or Fluency

When mathematicians think about their subject, they might primarily associate the rigor and formality of proofs. When high-school students think about mathematics, they might associate fluency problems when preparing for exams. In reality, neither of these two approaches are what we need from school mathematics.

The focus should be much more on *mathematical intuition and understanding*: estimating the answer to problems or verifying an existing answer, recognising and generalising patterns, deriving procedures and equations which you don’t remember exactly, and being aware of common mistakes and misconceptions (especially in topics like probability and statistics).

Many concepts in mathematics have a wide range of different representations (e.g. fractions as shaded areas, decimals, percentages, groups or rates). Students should be familiar with as many representations as possible, understand their relationships, and be able to decide which one is most suitable for a specific problem.

## 8. Discussion and Teamwork

Mathematics is rarely a solitary pursuit, and many real problems don’t just have a single, correct answer. Discussions, collaboration and teamwork should be a key part of every curriculum.

## 9. Mathematics is Alive

To make mathematics more relevant, it is important to portray its history, recent discoveries, and current research – as well as the diverse groups of mathematicians and scientists doing this work.