? The county teaching and research section stipulates that the main course of "integration of training, research and competition" this semester is calculation. In the eyes of most teachers and students, the calculation course is the least attractive because it is monotonous and boring. How to make the calculation class more interesting and efficient has always been a difficult problem for most math teachers. The county education bureau aims to promote the professional quality of primary school mathematics teachers, improve teachers' participation in the training of teacher workshops with the theme of "integration of training, research and competition" and improve the teaching ability of computing courses. On May 10, a one-day full-time training was conducted in Xincheng Primary School. Mr. Hao, a Henan special-grade teacher from Zhumadian Experimental Primary School, was invited to our county to give a wonderful lecture, training and demonstration class for our math teachers. This training can be described as timely rain, and the day's study was fruitful, which solved my doubts in time.
? I watched the heterogeneous live demonstration class of Addition and Subtraction of Fractions of the Same Denominator by Hao and Kevin Z, and listened to the special report of the new concept of computing teaching-the cultivation of computing ability by Hao, which gave me a deeper understanding and deeper thinking on how to teach a good computing class.
1. Mobilize students' life experience and knowledge experience
? Computing class not only has a good situational introduction, but more importantly, it arouses students' thinking in the situation and awakens the existing life experience and knowledge experience. As Mr. Hao said, thinking is the premise of all activities. In this way, effective and interesting can be organically combined to avoid creating situations for the sake of creating situations. As long as students can think positively, the "four abilities" in curriculum standards can be realized smoothly, classroom teaching can be full of vitality, and students can have interest in learning.
2. Conduct efficient inquiry.
According to the new curriculum standard, mathematics learning is not only rote learning and imitation, but also students' independent exploration and cooperation, so as to better internalize knowledge. The calculation course itself is rather boring and needs repeated practice. Therefore, teachers need to carefully design each link to make the abstract content vivid, just like Mr. Hao's class, and let go boldly, giving students enough time to think independently, explore independently, discuss and communicate, gain knowledge in active exploration, and feel the fun of calculation.
3. Design a variety of practice methods
When we consolidate the teaching of computing, we often do a lot of repetitive exercises. Because there is nothing new, it leads to students' passive participation and mechanical memory, which leads to students' lack of interest and active challenge, which is not conducive to the absorption and internalization of knowledge. However, Teacher Hao's classroom exercises are creative. Her design is structured, interesting and challenging. Combining the child's psychological characteristics-curiosity, she grasped the students' taste buds well, thus enhancing the students' initiative in learning, thinking and participating.
4. Effectively combine arithmetic and algorithm.
Arithmetic provides a precise thinking direction for calculation and ensures the accuracy and rationality of calculation, and the algorithm is based on arithmetic. In calculation, the correct algorithm helps us to calculate quickly and improve efficiency. The new curriculum standard emphasizes that students' learning should be a lively, proactive and personalized process. Diversified computing should be regarded as a highlight of computing teaching, and then students should be guided to compare the characteristics of different algorithms and choose the best method. In this way, students feel the significance of calculation, which makes calculation not only interesting and useful, but also brings new vitality to boring calculation; Let computing ability be not only mathematical operation skills, but also mathematical thinking ability.