Miss Zhang Xingang. According to Baidu's query, Mr. Zhang Xingang, who wants to learn online school, has his own set of methods in online teaching of primary school mathematics. Teacher Zhang Xingang is also very good at using the wonderful combination of numbers and shapes, so that students have more opportunities to learn and understand mathematics from the surrounding things, realize that mathematics is around and feel the charm of mathematics. Of course, he is also very demanding of students. In order to cultivate students' habit of reading and examining questions carefully, he will make some changes "quietly" when doing exercises, so that students can know what their problems are. So as to promote students' mathematics learning and pay more attention to these error-prone points in future study. Zhang Xingang's fifth-grade mathematics textbook "Beijing Normal University Edition Volume I and Volume II+Intensive Reading Lecture on Olympic Mathematics Development" is also very popular.