What are the concentrated difficulties in chemistry? I concentrate on these points based on feedback from students. The first basic of this type is spatial structure ability. Based on small objects in daily life, you can form a mind map in your mind. Secondly, various magnetic field memorization formulas are also necessary. First, the quantity of matter begins. In fact, the quantity of matter is essentially the same as mass, both being physical quantities that describe the amount of matter. A clear understanding of the nature of chemistry on the amount of matter, bridge between microscopic particles and macroscopic matter, link Avogadro's constant to the water droplets in our daily life, the alternative conversion of equivalent components.

In middle school we learn chemistry is actually more concrete theory. Then by the time we are exposed to the amount of matter in high school it becomes an abstract concept and suddenly we don't know what to do. Integrate the mind in the mind, in the conceptual learning and solid foundation of solid walking, this chemistry road interlude is very simple. The first basic of this type is spatial structure ability. Based on small objects in daily life, a mind map can be formed in the mind. Secondly, various magnetic field memorization formulas are also necessary. Physics. Physics in the early part of high school is actually quite simple, and physics is most typical of the sophomore transition in one area in particular. It is the combined use of superposition of various magnetic fields and so on. Many types of problems in this direction students know are reversed, and I'm here to give students some tips on how to do this.

First of all, the first basic of this type is spatial structure ability. According to the small objects in daily life, you can form a mind map in your mind. Secondly, various magnetic field memorization formulas are also necessary.

Magnetic and electric fields are practically connected. Both can be learned together. Moreover, to learn the magnetic field, the foundation of mechanics should be laid. This is because in a magnetic field, unlike an electric field, charged particles are subjected to more Lorentz force.

The first basic of this type is spatial structure ability. Based on small objects in daily life, you can form a mind map in your mind. Secondly, various magnetic field memorization formulas are also necessary.