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Direct linkGailiunas, P.; Sharp, J. – International Journal of Mathematical Education in Science & Technology, 2005
Everyone is familiar with the concept that the cube and octahedron, dodecahedron and icosahedron are dual pairs, with the tetrahedron being self-dual. On the face of it, the concept seems straightforward; however, in all but the most symmetrical cases it is far from clear. By using the computer and three-dimensional graphics programs, it is…
Descriptors: Logical Thinking, Computer Graphics, Computer Simulation, Thinking Skills
Download full textMullis, Ina V. S.; Martin, Michael O.; Ruddock, Graham J.; O'Sullivan, Christine Y.; Arora, Alka; Erberber, Ebru – International Association for the Evaluation of Educational Achievement, 2005
Developing the Trends in International Mathematics and Science Study (TIMSS) 2007 Assessment Frameworks represents an extensive collaborative effort involving individuals and expert groups from more than 60 countries around the world. The document contains three frameworks for implementing TIMSS 2007--the Mathematics Framework, the Science…
Descriptors: Grade 8, Grade 4, Geometric Concepts, Science Tests
