Our story
Concept Mathematics is a modern textbook series written specifically for the Stage 6 NSW syllabus.
The series began as a discussion over a coffee meetup between two passionate educators who wanted to share their knowledge with all teachers and students in NSW, believing that expert knowledge should be accessible.
As a result, the series was developed from the ground-up to achieve exactly this.



Jonathan Le is a highly regarded Mathematics educator and textbook author whose work is widely used across New South Wales. He holds a Bachelor of Science (Advanced Mathematics), majoring in Pure and Applied Mathematics, from the University of Sydney.
He is recognised as a subject-matter expert in Mathematics Advanced, Mathematics Extension 1, and Mathematics Extension 2. Jonathan has advanced technical skills in LaTeX, textbook design, and print production - principles he has applied in the development of the "Concept Mathematics" series.
Jonathan has also worked for Fire & Rescue NSW as a professional firefighter, and also as a lifeguard for Surf Rescue NSW, applying the same discipline and commitment to saving lives as he does to mathematics education in NSW.

Ringo Mok is an experienced Mathematics educator who has taught in New South Wales schools for over a decade. He holds a Master of Mathematics with Excellence from the University of New South Wales. He also holds a Bachelor of Science (Advanced Mathematics), a Master of Teaching, and a Graduate Certificate in Data Science from the University of Sydney.
Ringo has contributed to the NSW Stage 6 Mathematics curriculum review and regularly presents at Mathematics teacher conferences, delivering professional development seminars on curriculum, pedagogy, and mathematical reasoning. He also works with pre-service Mathematics teachers at the University of Sydney, tutors undergraduate Mathematics classes at UNSW, and is a problem writer for the Australian Mathematics Competition.