This document provides information about a primary school practicum seminar on addition and subtraction. The seminar objectives are to explain, apply, and use addition and subtraction in daily life. The seminar includes stories and activities to teach the concepts. Students will learn about addends and sums in addition, and the terms subtrahend and difference in subtraction. Activities include practice problems identifying the correct answer and filling in blanks with addition and subtraction equations. The goal is for students to understand and be able to apply the basic concepts of addition and subtraction.