I am a teacher who can help a student who has difficulty understanding physics and chemistry, in particular, students enrolled in grades 7, 8 and 9 of basic education, as well as in grades 1 and 2 basic education. My lessons last two hours, I give basic information and a general conclusion for each lesson with a detailed explanation of the new laws of physics and chemistry during the first hour. Thus, the second hour is devoted to a tutorial session (exercises + corrections).