To develop further a strategy of computerised assistance for laboratory experiments, three functions (pre-experimental, syn-experimental and post-experimental function) were employed. A set of computer programs was prepared and used to assist the conduction of chemical experiments and the statistical analysis and interpretation of the results. The programs constitute the basis for three kinds of instructions prepared as a prelude to conducting the experiment ‘empirical equations of reaction kinetics’. The effectiveness of using interactive laboratory instruction was tested, together with the significance of multimedia and interactive elements in the course of such preparation. The findings show that the use of interactive multimedia instruction shortens the time of completions of given experiment and reduces laboratory errors, as compared to the paper or video instruction. [Chem. Educ. Res. Pract., 2006, 7 (1), 1-12]