Established in 2008, onSponge is committed to enriching the mathematical journey of students. Our renowned +hinkingMath series of workbooks is expertly designed to prepare students for the Primary School Leaving Examinations (PSLE).

Developed more than 15 years ago by educational experts and experienced teachers, our workbooks have helped more than 100,000 students hone their skills to master Math problem sums and improve their grades.

Adopted by more than 100 schools across Singapore, the +hinkingMath workbooks have become an essential part of the educational landscape – as a supplementary material and a transformative tool for students of all abilities.

In addition to our printed workbooks, students can experience the +hinkingMath programme through our certified tuition partner, Oodles Learning. Each year, over 80% of students enrolled at Oodles Learning achieve AL1 to AL3 in PSLE Math.