Teaching is a process that impacts the brain of learners. In order for the teaching process to be effective, lecturers need understand the mechanism of brain activity, especially human psychology. In the history of teaching, many psychologists and educators have made the findings to help the learning process more and more complete. The following article describes some of the teaching target distributions, according to ?The Learning Curve? of Hermann Ebbinghaus and ?The First Twenty Hours? theory of Josh Kaufman. Structure of this article consists of two parts: The first part introduces the biography of Ebbinghaus, his learning curve theory, and the First Twenty Hours theory of Josh Kaufman; The second part discusses some of the time distribution methods for developing teaching objectives in some of subjects at Mien Tay Construction University. The Informatics specialized Architecture 1 subject is as an example. That is an example that the author has done very successfully at Mien Tay Construction University in Vietnam.