What are the four steps for solving a problem? should any other factors be accounted for when solving a problem? should any factors be accounted for when explaining how to solve a problem?

Analysis of the problem - working out what the problem is and setting down any testing that will happen to check that the solution works.

Design the solution - maybe there is more than one way to solve the problem, but the best way needs to be designed

Implementation of the design - produce the design: testing that the solution works should be included here

Evaluation - The solution is now used to solve the problem: Feedback is asked for to check that the solution does meet the original problem and solves it.

The answer is, the streetlight is 18 inches tall.