The Computing Progression Pathways suggests that at the yellow level, on the theme of Data & Data Representation, a student should demonstrate that he/she:

• Recognises different types of data: text, number. (Abstraction) (Generalisation)
• Appreciates that programs can work with different types of data. (Generalisation)
• Recognises that data can be structured in tables to make it useful. (Abstraction) (Decomposition)

The following link to cs4fn articles that illustrate Data & Data Representation – Yellow Level

• One of the nastiest errors in computer software can come from something called a stack overflow, the computer pops or pushes from its current position, where the stack pointer is pointing, and shoots off the end of the stack, like a magician counting past 52 cards.

  Johnny Ball’s ‘Two Wrongs Do Make a Right’ Trick [cs4fn-link]

More of our resources, including linked computing ‘story’ booklets can be found in our resources section. You may also want to look at cs4fn’s teacher resources or browse the latest cs4fn magazine.