STOICHIOMETRIC CALCULATIONS IN CHEMISTRY CLASSES

Abstract

This paper presents the results of research on solving excess problems by the stoichiometric method of calculation, this approach is rational, simple, and easily adapted to the school program. If a student correctly wrote the equation of reactions, compiled an algorithm of tasks, and solved one task completely, then with a high degree of certainty it can be stated that he/she is able to solve the tasks of the suggested types. Thus, the number of analyzed problems increases and an opportunity arises in the high grades to converge in space and time problems of different types, and convergence in space and time makes it possible to notice the similarity and difference between different types of problems faster. The learning process becomes more effective as a result of constant and more intensive use of such mental actions as comparison, analysis, synthesis, classification, and abstraction. The system under discussion forces the student to refer more often to the condition of the problem and to comprehend it more deeply, using the table one can set the algorithm of solving a problem or on the known algorithm to make the condition of the problem and using this table with proper decoding of commands (operators) and translation of algorithms into one of the machine languages, one can make a program for programmable microcalculator or computer.