![David Callan](https://b2199140.smushcdn.com/2199140/wp-content/uploads/2024/07/David-callan-300x300.jpg?lossy=1&strip=1&webp=1)
David is a Higher Level Leaving Certificate Mathematics and Biology teacher. This year, David will be teaching Leaving Certificate Maths to our 6th Year students. With 17 years experience, David knows what it takes for students to achieve success in the Leaving Certificate.