AQA 7517 4.3.2.1: Simple tree-traversal algorithms
The free BugBot lesson that teach this point, a robot to try it on, and the past-paper questions that test it.
Lessons that teach it
- A4.7 Tree traversals Trees and graphs
Pre-order, in-order and post-order, the outline method, expression trees and what each traversal is for.
Try it on a robot
The task from A4.7 Tree traversals, running here. Change the program and press Run.
The specification is AQA's own document; this page says which of our lessons teach point 4.3.2.1 and is not endorsed by the board.