Teaching Design of People's Education Edition: Factors and Multiples —— Reflections on the Teaching of People's Education Edition
"Factor and multiple" is a mathematical concept class, and the concepts of factor and multiple are directly given through this multiplication formula. This part of the content is difficult for students to master for the first time.
Mathematics curriculum standards? People-oriented? The goal of mathematics teaching is to adapt to and promote the development of students. According to the knowledge characteristics of this class and students' cognitive rules, I adopted developmental teaching methods such as role conversion, combination of numbers and shapes, and cooperative learning. In teaching, I pay attention to the new concept of taking students as the main body, and strive to provide enough space for students to explore and discover. In class, I mainly focus on the following aspects of teaching:
(1) Capture the relationship between life and mathematics and help students understand the interdependence between factors and multiples.
Factors and multiples reveal an interdependent relationship between two integers. In the conversation before class, I used a brain teaser to penetrate interdependence. Through the relationship between people in life and the relationship between numbers in mathematics, this design is natural and appropriate, which not only makes students feel the connection between mathematics and life, but also preliminarily learns to observe things and think about problems from the perspective of mathematics, which stimulates their interest in mathematics and subtly helps students understand the interdependence between factors and multiples. The expected results have been achieved in teaching, and students have a deeper understanding of the interdependence between factors and multiples.
(2) Role change, so that students can experience the connection between numbers.
Factors and multiples This course studies the relationship between numbers, and the knowledge content is abstract. So, I adopted? Personification? With the new teaching method, every student has a digital card, and both students and teachers have become members of the mathematics kingdom. When students want to answer questions, they will hold high the numbers. The whole class is immersed in their own role experience, and students regard themselves as a number. Through the understanding of their own numbers, we can understand the relationship between factors and multiples, which not only fully stimulates students' interest in learning, but also effectively breaks through the teaching difficulties.
(3) The combination of numbers and shapes allows students to enter the mathematics classroom with their existing knowledge.
? Combination of numbers and shapes? This is an important mathematical idea. For teachers, it is a teaching strategy and a developmental classroom teaching method; It is also a learning method for students. If it is infiltrated for a long time and used properly, it can make students form good mathematics consciousness and thought and play a stable role in their mathematics learning career for a long time. Teachers guide students to imagine space.
(4) Reorganize the teaching materials, and explore various methods of finding factor multiples according to the actual situation of students.
In the textbook, there are few examples of exploring factors, only one: finding the factor of 18. According to the actual situation of students, I rearranged the teaching materials and asked students to calculate the formula according to the multiplication formula first. A couple, right? Find out the factor of 15 carefully, and then ask students to explore the factor of 18. Pass? Questioning? Is there any way to ensure that you can find everything and not miss it? Let the students think and find that looking for factors in pairs in a certain order can not only find the whole, but also save it. Then with the help of body language, let the students say the factors of 20 and 24, so as to consolidate the exercise. This design is from easy to difficult, from shallow to deep, in line with students' cognitive laws. When exploring multiples, I boldly let go, let students explore independently, find a method to calculate multiples, and provide students with broad thinking space. In this way, through various forms of teaching, it not only stimulates students' interest in learning, but also greatly improves the effectiveness of classroom teaching.
(5) Interesting activities to expand students' thinking space and cultivate students' divergent thinking ability.