Trausti has worked in education and media, completing his master's degree in Mathematics Education with distinction from Reykjavik University before taking up teaching Mathematics in London. In his roles as head of mathematics in two leading prep schools in London he has gained valuable knowledge of the requirements for gaining access to some of the most selective senior schools in the country, including Westminster School, St. Paul‘s School and Eton.

He has written about motivation and obstacles to learning in secondary maths education, highlighting the need to allow pupils to position their learning in context with real-life situations to facilitate intrinsic motivation. One of his strong points as a teacher is working with pupils who need support and encouragement, but he also thoroughly enjoys teaching gifted pupils. He has designed learning material to engage very able children, also proving beneficial to students on a broad range of the attainment spectrum.

Trausti values teaching methods that allow students to think freely and constructively about subject matters, extending learners’ quest for knowledge but making sure that they have the basic tools to understand and solve problems representative of the learning goals in the curriculum. He has used and encouraged varied approaches to this end, such as working with real-life situations where pupils can find their place in doing valuable and meaningful work.