At DLD, the teachers use evidence-based teaching methods, which are shown by scientific research to help students achieve significantly improved grades. In the maths department, teachers also make frequent use of visual methods and computer animations to make difficult mathematical concepts as simple as possible for students to grasp. This is beneficial for all students, both home-students and students whose first language is not English.

The DLD maths department also offers the opportunity for students to improve their computer programming skills and put their maths to a practical use, by providing optional programming exercises relating to each math topic. This strengthens students’ understanding of A-level mathematics, and sets them up with a useful and employable life-skill too.