1. Teaching in kind: Teaching in kind, such as apples and toys, so that students can intuitively feel the meaning of addition and subtraction. For example, let the students take two apples first, then one apple, and ask the students how many apples there are.
2. Graphics teaching: Teaching with graphics, such as drawing two circles, then drawing a circle, and asking students how many circles there are. This method can help students understand addition and subtraction vividly.
3. Game teaching: design some interesting math games, such as "digital solitaire" and "guessing numbers", so that students can learn and master addition and subtraction in the games.
4. Create situations: Create some life situations so that students can learn addition and subtraction in the process of solving problems. For example, ask students to help their mother calculate the total shopping price or calculate their own pocket money.
Step-by-step teaching: decompose complex problems into simple steps, and gradually guide students to understand and master addition and subtraction. For example, teach students to add first, and then teach students to subtract.
6. Repeated practice: Let students practice addition and subtraction repeatedly, and consolidate and improve their computing ability through a lot of practice.
7. Encouragement and praise: Give timely encouragement and praise to students' progress to stimulate their interest and motivation in learning.
Generally speaking, the teaching of mathematics addition and subtraction in the first grade of primary school needs to combine the actual situation of students and adopt vivid and interesting teaching methods to let students learn and master addition and subtraction in a relaxed and happy atmosphere.