资讯

Educational Studies in Mathematics, Vol. 67, No. 2 (Feb., 2008), pp. 171-185 (15 pages) A common approach used for introducing algebra to young adolescents is an exploration of visual growth patterns ...
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 218, No. 1133 (Jun. 25, 1953), pp. 255-268 (18 pages) The exact relationship between molecular ...
Life is rife with patterns. It's common for living things to create a repeating series of similar features as they grow: think of feathers that vary slightly in length on a bird's wing or shorter and ...