Learning and thinking science course is a brand that provides online education services for primary and secondary schools, aiming at providing one-stop extracurricular teaching for children aged 3- 18. Among them, the course of scientific literacy is a part of the big science project of the online school of learning and thinking, which includes four comprehensive courses: critical thinking training, thesis writing guidance, scientific reading expansion and practical ability improvement. These courses are not IQ tax, but to help students master the basic knowledge of science, improve their scientific literacy, and cultivate their innovative ability and problem-solving ability.