Yu Te has a very deep mathematical foundation, a very broad mathematical vision, extremely rich teaching and research experience, and a particularly strong ability to solve problems; My heart is a mathematical culture, and I have a different kind of mathematical feelings. He loves mathematics teaching and research and has been engaged in teaching and research for nearly twenty years. Yute is keen on communication and sharing, active in online research groups, and often solves problems for teachers. He is approachable, humorous and generous, devoted to teaching and research, and deeply respected by teachers. In particular, many online research lectures and offline lectures were held. The venue was wonderful and everyone was full of gains. It is no exaggeration to say that every lecture will promote your professional growth. Due to work reasons, he didn't have the opportunity to take part in offline special study, and his problem-solving ideas can also be seen in online research. His first deterministic thought and causal analysis make us return to the essence of solving problems and pay attention to the beauty of natural generation of ideas. He proposed, refined and summarized "On aspect ratio, ingenious incremental design, vertical processing, rectangular solution, 12345, triangular solution, area technique, geometric transformation, bounded rotation, geometric maximum", which was well received by the problem-solving teaching and research group, easy to learn and practical, and teachers rushed to learn. When solving problems, Uttar always jumps out of ordinary people's thinking, unlocks the imprisonment of inertia, breaks the barriers of thinking, and looks at the breakthrough and natural growth point of solving problems from another height and another angle, which makes people shine at the moment, but all the ideas are so natural and avoid the harm of "deliberate" structure. Its high conception, deep Taoism, ingenious conception, wonderful solution, deep implication, intriguing and amazing. We sincerely look forward to turning the treasure in our hearts into types and benefiting more teachers and students.