In Singapore, Additional Mathematics is an optional subject offered to pupils in Secondary School—specifically those who have an aptitude in Mathematics and are in Normal (Academic) stream or Express stream. The syllabus covered is slightly more in depth as compared to Mathematics, with additional topics including binomial expansion, proofs in plane geometry, differential calculus and integral calculus. Additional Mathematics is also a prerequisite for students who are intending to offer H2 Mathematics and H2 Further Mathematics at A-level (if they choose to enter a Junior college after Secondary School). Students without Additional Mathematics at the 'O' level will usually be offered H1 Mathematics instead.