This lesson provides both syntax and strategies needed to build correct while and for loops. The terminology of loop construction will give us tools to build and debug conditional loops. We can use terms such as "off-by-one" errors or "failure to maintain state." This is a critical topic, one that takes much time and practice to master. Learning to translate thoughts into computer algorithms is one of the more challenging aspects of programming. We solve repetitive and selection problems constantly without thinking about the sequence of events. Using pseudocode helps translate your thinking into code.