Dictionary.net

Instruction in which learners progress at their own rate using workbooks, textbooks, or electromechanical devices that provide information in discrete steps, test learning at each step, and provide immediate feedback about achievement. (ERIC, Thesaurus of ERIC Descriptors, 1996).

A mode of teaching in which the student is offered some information and is enquired some questions, a correct answers leads the student to the next step and a wrong answer results in repeating the entire process.