The second lecture "Understanding Mathematics"

Lecture 3 "Mathematics and Our Life"

The fourth lecture is "the development trend of mathematics in the twentieth century"

The fifth lecture "Review the past and learn new geometry"

Lecture 6 "Mathematics and Astronomy"

Lecture 7 "A widely used subject-Applied Statistics (I)"

Lecture 8 "A widely used discipline-Applied Statistics (II)"

Lecture 9 "Mathematics in Market Economy"

Lecture 10 "Can Numbers Guarantee Honesty?"