This lesson plan is for a 30 minute maths class on subtraction. It outlines the key concepts to be covered which are the meaning of subtraction, identifying and classifying subtraction problems, and using knowledge of subtraction to solve problems. The objectives are for students to understand the concept of addition and subtraction and how it relates to daily life. Instructional strategies include checking prior knowledge, demonstration, explanation, questioning, discussion and activities. Teaching and learning materials include a computer, internet, objects, paper, chalk and worksheets. Formative assessment includes addition questions and worksheets for students to solve in groups. Homework assignments involve questions from the exercises in the textbook.