Development Of Blcs Learning Devices Based On Traditional Or Computer Explorative Media To Improve Mathematical Problem-Solving Skills

Abstract

This study aimed to develop a valid, practical and effective BLCS learning devices to improve problem solving skills. The BLCS (Bruner’s theory, Local Culture, and Scaffolding) learning devices were computer or traditional explorative media supported by lesson plans, worksheets and formative tests. This development research was based on Plomp’s procedure and used research instruments in the form of observation sheets, questionnaires, interview guidelines, and description tests. In the preliminary research stage, several learning problems were found, mainly learning did not lead the students to find mathematical concepts and the exercises given were not mathematical problems. Furthermore, the prototyping phase carried out several stages such as (1) the development of initial learning devices as a solution to the problem, (2) conducting validation tests by three validators, (3) the trial limited to 12 students to obtain practicality data, and (4) the field trial I on 40 students to get practicality and effectiveness data. In the final stage, was carried out a semi-summative assessment called field trials II on 40 students and provided results in the form of a final BLCS learning devices that was valid, practical and effective. The discovery of mathematical concepts was facilitated by computer or traditional explorative media which contain real problems based on local culture and was supported by lesson plans, worksheets, and formative tests with each of their characteristics so that problem solving abilities could also be well honed.