Meet Sean Morrissey: Higher Level Maths, Taught by the Person Who Corrects It Every July

While most teachers are on their summer break, Sean is sitting down with a stack of Leaving Certificate Higher Level Maths papers, marking them for the State Examinations Commission. He's now completed six years of this, and it has given him something few maths teachers ever get: a genuinely inside view of exactly where students win marks, and exactly where they throw them away. That insight sits at the heart of everything Sean teaches.

A Teacher Who Knows Both Sides of the Exam
Sean brings ten years of classroom experience across mainstream education and grinds, having worked with students of every ability level. He understands not just the maths, but the psychology of getting a student from "I don't get this" to "I've got this", and he has built a reputation as one of the most sought-after Higher Level Maths teachers around.

His six years correcting Higher Level Maths papers changes what happens in his classroom. Sean isn't teaching from a textbook's idea of a good answer. He's teaching from having personally read thousands of real student answers and knowing precisely which ones scored full marks, which lost a mark for a missing step, and which fell apart under time pressure. Every lesson, every worked example and every piece of exam technique he teaches is shaped by that direct experience of the marking scheme, with one aim: getting his students the maximum possible marks and points in the Leaving Certificate.

Classes That Fill Up, Year After Year
Sean's classes are consistently oversubscribed. Students and parents return to him year after year, and that kind of loyalty isn't accidental. It reflects results, and it reflects trust. When demand for a teacher's classes stays high for a decade, it tells you everything you need to know about the difference he makes.

Maths as a Contact Sport
Sean has a simple philosophy: maths is a contact sport. It rewards practice, persistence and the right guidance, not passive revision. Outside the classroom, he's deeply involved in coaching local sports, and that same mentoring instinct carries straight into how he teaches, pushing ambitious, motivated students to work hard while making sure they always feel supported, never overwhelmed. He has a genuine knack for taking complex concepts and making them simple, and he takes real pride in watching students build both the confidence and the mastery to perform at their best.

Built for the Highest Possible Grade
Sean's approach combines a strong command of the mathematics itself with an unrelenting focus on exam technique, problem-solving and accuracy. For students who are serious about reaching their full potential in Higher Level Maths, Sean offers something rare: extensive classroom experience, direct examiner insight, and a proven track record of getting the very best out of his students.

LC Maths
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Tutor Testimonials

"We were fortunate to have Sean Morrissey work with our daughter throughout 5th and 6th year in preparation for her Leaving Cert Higher Maths. His tuition was absolutely superb – always clear, focused, and tailored to her needs. From the beginning he built her confidence and understanding, and thanks to his guidance she went on to achieve a result far beyond what she had ever expected when starting out. We honestly couldn’t recommend him highly enough."
emer, parent
"Sean Morrissey is an outstanding mathematics teacher who excels at creating a classroom environment that is both enjoyable and highly effective for learning. He has a remarkable ability to strike the perfect balance between fostering a genuine understanding of the subject and maintaining a strong focus on exam preparation. This approach not only makes the course more manageable but also enables students to achieve excellent results. His teaching style combines clarity, encouragement, and structure, making mathematics both accessible and rewarding."
John, LC 2024

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