Right at the beginning of each lesson, two students are tested on the past and older curriculum. After testing, they repeated the nomenclature of the compounds on the board, from which there will be a test for another hour. It was obvious that about half of the class did not know at all what it was about and how formulas or names were formed.
After testing, they repeated the nomenclature of the compounds on the board, from which there will be a test for another hour.