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Yuan, Y.; Lee, C. -Y.; Wang, C. -H. – Journal of Computer Assisted Learning, 2010
This study develops virtual manipulative, polyominoes kits for junior high school students to explore polyominoes. The current work conducts a non-equivalent group pretest-post-test quasi-experimental design to compare the performance difference between using physical manipulatives and virtual manipulatives in finding the number of polyominoes.…
Descriptors: Control Groups, Quasiexperimental Design, Foreign Countries, Junior High School Students