Least mastered competency addressed: Solves routine and non-routine problems involving multiplication without or with addition and subtraction of whole numbers including money using appropriate problem-solving strategies and tools Defined problem: The learner do not know how to solve routine and non-routine problems involving multiplication without or with addition and subtraction of whole numbers including money using appropriate problem-solving strategies and tools. Identified solution to the problem: Prototype (Storyboard): How the prototype could solve the problem?