KEEFEKTIFAN MEDIA MATEMATIKA VIRTUAL BERBASIS TEAMS GAME TOURNAMENT DITINJAU DARI COGNITIVE LOAD THEORY
The purpose of this study is to produce virtual mathematics learningmedia based on good
quality of TGT for use in learning mathematics and describe how well the mathematics
learning tools quality which was produced. The quality criteria used refers to the Nieveen
criteria, which are valid, practical and effective. The material that was developed was the
material of plane geometry. This research developed a mathematics learning tool using a
development model adapted from the ADDIE development model. The stages that need to be
done to obtain a valid, practical and effective multimedia learning mathematics is requirement
analysis and objective formulation, product design / development, trial, revision and final
product study. The experiments included expert trial / expert judgment, small group try-out
and field try-out. The field try-out was done on two classes of VIII grade in SMP N 1 Sedayu.
The research instrument used was validation sheet, teacher's appraisal sheet, student
assessment sheet, and Cognitive Load Theory (CLT) test. This research produces a qualified
and viable virtual mathematics learning media. The results showed that multimedia learning
mathematics which was developed is valid, practical and effective.