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- catalog abstract "Shows advantage of using various abstract and concrete representations of mathematical concepts. Allowing students to use multiple representations is shown to improve understanding.".
- catalog audience "Adult level.".
- catalog contributor b2804638.
- catalog created "[198-?]".
- catalog date "1980".
- catalog date "[198-?]".
- catalog dateCopyrighted "[198-?]".
- catalog description "Adult level.".
- catalog description "Shows advantage of using various abstract and concrete representations of mathematical concepts. Allowing students to use multiple representations is shown to improve understanding.".
- catalog extent "1 videocassette (VHS) (29 min.) :".
- catalog issued "1980".
- catalog issued "[198-?]".
- catalog language "eng".
- catalog publisher "Cambridge, Mass. : Educational Technology Center,".
- catalog subject "Computer-assisted instruction.".
- catalog subject "Mathematics Computer-assisted instruction.".
- catalog subject "Mathematics Study and teaching.".
- catalog title "Image, graph, symbol videorecording : representation and invention in the learning of mathematics.".
- catalog type "image".