Michael Haese Mark Humphries Chris Sangwin Ngoc Vo

About the Author

Michael Haese, Mark Humphries, Chris Sangwin, and Ngoc Vo are mathematics educators and authors known for creating clear, rigorous resources that support students through challenging secondary and pre-university courses. Their collaborative work combines careful explanation, structured progression, and extensive practice to build both conceptual understanding and problem-solving confidence. With a focus on accessible presentation and internationally relevant curricula, they help learners develop strong mathematical foundations for further study. Their publication, Cambridge Additional Mathematics IGCSE® (0606) O Level (4037) 2nd edition, reflects their commitment to thoughtful pedagogy, precise content, and practical support for teachers and students.