Baudelaire's Ideas of Vagueness and Uniqueness in Algorithm-Based Explanations.- Selfish Gene Theory Explains Oedipus Complex.- How to Teach Advanced Highly Motivated Teaching Strategy of Iosif Yakovlevich Verebeichik.- Why 70 100 Is Satisfactory? Why Five Letter Grades? Why Other Academic Conventions?.- Shall We Ignore All Intermediate Grades?.- Why ? is a Reasonable Symbol for Infinity.- What is 1 0 from the Practical A Pedagogical Note.- Historical Diversity Through base-10 Representation of Mayan Maths.