Some students can also take a third maths qualification, "Additional Further Mathematics", which adds more modules from those not used for Mathematics or Further Mathematics. Schools that offer this qualification usually only take this to AS-level, taking three modules, although some students can go further, taking the extra six modules to gain another full A-Level qualification. Additional Further Mathematics is offered by Edexcel only, and a Pure Mathematics A-level is available for students who—on the Edexcel exam board—take the modules C1, C2, C3, C4, FP1 and either FP2 or FP3.