IB Chemistry is divided into two levels: Standard Level (SL) and Higher Level (HL). The SL level is intended for students who have little or no prior experience in chemistry,
IB Biology is divided into two levels: Standard Level (SL) and Higher Level (HL). The SL level is intended for students who have little or no prior experience in biology,
ib books pdf free download IB math is divided into four different levels: Studies, Standard Level (SL), Higher Level (HL), and Further Mathematics. The Studies level is intended for students