The document discusses problem solving theory, which involves a structured process to address challenges through logical and creative thinking. It describes the typical stages in problem solving as understanding the problem, identifying the problem, analyzing the situation, generating solutions, evaluating options, implementing a solution, and evaluating the outcome. Common problem-solving techniques explained include brainstorming, root cause analysis, mind mapping, SWOT analysis, fishbone diagrams, decision matrices, TRIZ, Pareto analysis, and the Six Thinking Hats method.