This case is based on the visual exploration of "mathematical understanding level", relying on the online learning space of the school to carry out wisdom teaching, giving full play to the real-time, generative, pleasant and open characteristics of online learning space, building a smart learning platform for students to think independently, explore cooperatively and extend their thinking, and guiding students to experience the intelligent learning process of "understanding at the beginning of class-deep construction in class-clever application after class". Highlight three highlights: data helps thinking visualization, resources create a deeper understanding, interactive evaluation increases diversification, gradually enriches the understanding and mutualization of the two timing methods, enriches the structure of quantity sense, and gradually develops mathematical understanding and higher-order thinking.

Implementation process:

First, understand early before class that the "docking" of space is known.

Mathematics learning focuses on understanding, and the "docking" between the known and the unknown is the key factor to promote mathematics understanding. Teachers use the "* * * sharing folder" in the online learning space to build a resource creation platform, guide students to record the important moments in a day's life in the form of "moments+events" according to their own life experiences, and present what they have learned in the form of "* * * sharing" on web pages to help teachers and students find out the difficulties and growing points; The concept of pre-awakening provides direction and material for subsequent learning.

Second, we should deeply construct the understanding of "seeing" in the classroom.

(A flexible use of student resources, independent analysis of problems

Mathematical understanding pays attention to self-construction and knowledge re-creation. According to students' confused understanding of 12 timing method in * * * folder, the teacher arranges two kinds of students' resources, guides students to discuss the correct timing method, and constructs their own understanding of 12 timing method.

(two) practical answer data, timely supplement resources.

Learning to understand is a gradual process. The answering machine is used to test students' understanding of the starting point of the day, and the learning information table is generated. It is found that the correct rate is only 63%, and then the teaching strategy is adjusted to transfer the learning resources of the countdown to the Spring Festival Evening from the space in time to promote in-depth understanding.

(C) clever use of programming techniques to understand specific knowledge

The integration of programming and discipline has gradually become a new way to promote mathematical understanding. Teachers use programming technology to quantify the dynamic time of a day into a time scale and send it to students' mobile terminals with TALK. Through cooperative learning, they can vividly understand the similarities and differences between the two timing methods and their mutual methods, thus realizing the interaction between teachers and students and promoting the in-depth understanding of knowledge.

(D) Clever use of screen recording, intuitive feedback learning effect.

Migrating applications is an important way to deepen understanding. At this time, by dialing 15 and 3 o'clock for testing exercises, with the help of the "screen recording" function, we can intuitively see the process and effect of students' understanding.

Third, clever application after class, space "create" literacy.

The outstanding advantage of intelligent learning is that it can focus on each student's learning trajectory and push personalized learning resources from the "extended resources" of space. Teachers track and guide students' follow-up study in time. Promote every student's creative application, realize systematic construction and create the growth of mathematical understanding.

Teaching reflection:

First, students are always the center and end point of teaching, and the use of technology should aim at serving students' learning, facilitating students' use and promoting students' thinking, so as to promote the real growth of core literacy; Secondly, teachers are the practitioners and promoters of educational informatization, and the application of technology should be integrated with breaking through difficulties, expanding thinking space and developing subject literacy to promote the real occurrence of intelligent teaching; Third, the development of the times has put forward new requirements for education. The deep integration of information technology and subject teaching is not only a solid foundation for children's tomorrow, but also an effective way to improve teachers' information literacy, and it is also a rational choice to build a new teaching and learning model and help the future educational transformation. (The author is from Jing Rui Primary School, Shu Ren, Shapingba District, Chongqing)

Author: Li Hongmei Quilkin