This course examines the real number system (which includes the algebra of real numbers and their properties, the sequence of real numbers and their properties, the supremum and infimum of a set and their properties, intervals and their properties, the vicinity of a point), topology on lines real (which includes special points of a set and their properties, open sets and closed sets and their properties), sequences of real numbers (which include limits of sequences, properties of sequence limits, tails of sequences, subsequences, Cauchy sequences, monotone sequences , true divergent sequence), function limits (which includes the definition of function limits, convergent functions at a point, divergent functions at a point, properties of function limits, expansion of the concept of function limits) through ICT-based learning using lecture, question and answer and giving methods. task.