Mathematics: It mainly includes linear inequality, factorization, fractions, similar graphs, data collection and proof (1). The key points are: 1, factorization, 2, fractional sum, 3, proof (1). 1 and 2 lay the foundation of quadratic equation and quadratic function in grade three. 3 is to lay the foundation for the proof of Level 3 (2) and (3). The second semester of the second grade is the key! ! !

Physics: This is the real physics. The knowledge involved in this semester includes: physical properties of matter, force, force and motion, pressure and buoyancy from particles to the universe. The emphasis is on 1, the physical properties of matter, and it is required to find the density of matter by formula, ρ = m: v. Two-force equilibrium conditions. This is to lay the foundation for the mechanical lever of grade three.

The key points are: pressure and buoyancy, buoyancy is the most difficult knowledge to master in junior high school, and nothing is more difficult than it. The second part of junior high school is well learned, and the third part is very simple.

I wish you: academic progress and good health! !