Abstract: | A comparison is made of the relative effectiveness of teacher-demonstration and self-paced modes of teaching concepts and problem-solving skills in chemistry. Sixty students were randomized into two treatment groups. A self-paced instructional package was used by subjects in the self-paced group. Subjects in the second group were taught by a teacher who used the same self-paced package. Results of the analyses of variance performed showed that the selfpaced mode of instruction was significantly more effective for teaching concepts and problem-solving skills. An attitude test was given at the end of the third unit. Results of the test showed that most students preferred the self-paced instruction to the teacher-demonstration method. |