The Tree Diagram is a visual representation of a problem and its possible solutions. It starts with a single goal or question at the top, and then branches out into different levels of sub-goals ...

A bottom-up approach starts with the possible solutions or effects at the bottom and traces back to the problem at the top. You can use paper, software, or online tools to draw your tree diagram.

William Winn, Tian-Zhu Li, Donna Schill, Diagrams as Aids to Problem Solving: Their Role in Facilitating Search and Computation, Educational Technology Research and Development, Vol. 39, No. 1 (1991), ...