AQA 7517 4.1.1.4: Relational operations in a programming language
The free BugBot lesson that teach this point, a robot to try it on, and the past-paper questions that test it.
What it covers
At GCSE you used the arithmetic operators (F1.9), and, or and not (F2.3), string handling (F3.1) and randint (F3.7). A level adds the details that trip people up: what integer division does with negative numbers, the difference between rounding and truncating, exclusive or, converting between strings, numbers and dates, and why random numbers from a computer are not really random.
- Arithmetic
- Relational and Boolean operations
- String handling
- Random number generation
Or do it in the simulator, with tasks that mark themselves
Lessons that teach it
- A1.2 Operations, strings and random numbers Programming techniques and object-oriented programming
Integer division and MOD with negatives, rounding and truncation, XOR, string and date conversions, and pseudo-random numbers.
Try it on a robot
The task from A1.2 Operations, strings and random numbers, running here. Change the program and press Run.
The specification is AQA's own document; this page says which of our lessons teach point 4.1.1.4 and is not endorsed by the board.