Cerveza, Ryan L.2026-07-142026-07-142025Cerveza, R. L. (2025).Problem Solving, Mathematical Investigation and Modelling.[Instructional Materials, Don Mariano Marcos Memorial State University-South La Union Campus, Agoo , La Union]. Lakasa ti Sirib.DMMMSU Institutional Repositoryhttps://lakasa.dmmmsu.edu.ph/handle/123456789/2161Module I Introduction to Problem-Solving--Problem-Solving--Classification of problem-solving tasks--Stages of Problem-Solving--The Problem-Solving Heuristics--Module II Understanding the Problem, and the Problem-solving Process--Understanding the problem--Heuristics: Working Backward and Finding a Pattern--Heuristics: Solving a simpler and analogous problem, and Extreme case reasoning--Heuristic: Drawing a diagram--Module III Heuristics, and The Methods of Arguments--Heuristic: Intelligent Guessing and Testing--Heuristic: Accounting all possibilities--Heuristic: Organizing the data--Methods of Arguments--Module IV Mathematical Investigation and Modelling--Investigative Tasks --Stages of Investigation--Doing a Mathematical Investigation --ModellingenInstructional Material