I had a lot of fun putting this timeline together! I love math and it was a lot of fun to explore the development and use of manipulatives.
References
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Kim, R., & Albert, L. R. (2014). The history of base-ten-blocks: Why and who made base-ten-blocks?. Mediterranean Journal of Social Sciences, 5(9), 356-365.
Leinhardt, G. (1992). What research on learning tells us about teaching. Educational Leadership, 49(7), 20-25.
Moore, M. G. (1989). Editorial: Three types of interaction. The American Journal of Distance Education, 3(2), 1-6. Retrieved from http://aris.teluq.uquebec.ca/portals/598/t3_moore1989.pdf
Oliveira, C. (2009, August). The Moon in the Perception and Measurement of Social and Ritual Time. Comments on the Pre-historic Record. In Cosmology Across Cultures (Vol. 409, p. 364).
Stigler, J. W. (1984). “Mental abacus”: The effect of abacus training on Chinese children’s mental calculation. Cognitive Psychology, 16(2), 145-176.
Suh, J. M., & Moyer, P. S. (2008). Scaffolding special needs students’ learning of fraction equivalence using virtual manipulatives. Proceedings of the International Group for the Psychology of Mathematics Education, 4, 297-304.