The first chapter is divided into three chapters. The first chapter uses common logical terms: four propositions, noting that the original proposition and the negative proposition are equivalent propositions; Necessary and sufficient conditions, generally four judgment methods: definition method, set method, equivalent proposition method and transfer method; Conjunction, and or no, pay attention to the difference between no proposition and proposition negation; Special proposition and full name proposition.

The second chapter is conic and equation: solution, direct method, definition method, method of substitution, transfer method, parameter method and so on. Ballistic equation; The definition of ellipse, hyperbola and parabola, standard equation, geometric properties, pay attention to the asymptotic line of hyperbola, and solve problems with the definition of parabola.

In the third chapter, the parallelism and verticality in solid geometry are proved by using space vectors, and the space angle and space distance are obtained.