1, "geometric model", in which the mathematical model is usually involved in the exam, which is very cost-effective.
2, "Mathematical finale function volume" and "Mathematical finale geometry volume", these two books need to be fully mastered, which is helpful to improve the test scores.
3. Wan Wei's problems are more forward-looking. In recent 20 years, Wan Wei has been focusing on the topics of senior high school entrance examination, college entrance examination and PISA, collecting materials suitable for the proposition in real time, and building a huge material library for the proposition. Every year, more than 200,000 high-quality original questions are developed, so that each Wan Wei book does not focus on the topic. Teachers say that "Wan Wei's questions are good", and there are new materials and real situations. Asking more questions will be a "new method for senior high school entrance examination" with the concept of "proposition is teaching". Wan Wei takes stock of the practice preparation methods of famous teachers around the world, and organizes the exchange of teaching and research by famous teachers to improve the teaching quality. 20 17 Up to now, Wan Wei has held more than 300 public welfare lesson preparation meetings17, and Wan Wei has supported the national vision of teachers' lesson preparation teaching with the Institute of Thousand Talents.
Update 1: very gd fast+hard
Update 2: enough a_a
The sum of two digits is 9, and one digit is less than a quarter of the ten digits. This number