GCSE AQA Programming concepts - AQA Procedures and functions of subroutines Programs are designed using common building blocks, known as programming constructs.

Baruch B. Schwarz, Rina Hershkowitz, Prototypes: Brakes or Levers in Learning the Function Concept? The Role of Computer Tools, Journal for Research in Mathematics Education, Vol. 30, No. 4 (Jul., ...