AS/A level - Computer Science -Chapter 9 - Algorithm design and problem-solving

9.1 Computational Thinking Skills:

Show an understanding of abstraction
Need for and benefits of using abstraction
Describe the purpose of abstraction
Produce an abstract model of a system by only including essential details
Describe and use decomposition
Break down problems into sub-problems leading to the concept of a program module (procedure / function)

9.2 Algorithms:
Show understanding that an algorithm is a solution to a problem expressed as a sequence of defined steps.
Use suitable identifier names for the representation of data used by a problem and represent these using an identifier table
Write pseudocode that contains input, process and output
Write pseudocode using the three basic constructs of sequence, selection and iteration (repetition)

Document a simple algorithm using pseudocode
Write pseudocode from:
a structured English description
a flowchart
Describe and use the process of stepwise refinement to express an algorithm to a level of detail from which the task may be programmed
Use logic statements to define parts of an algorithm solution