Graphic elementary school mathematics to force mathematical problem solving ideas finale visualize + details of analytical answer (sophomore)(Chinese Edition)

2015-01-01 176 understanding the length of the East China University Press. comparing the length of the number of plane figures the number of three-dimensional graphics drawing simple shift at regular times more than the number of recognized division shifted more than make up less computing time learning number of categories listed group game a tree planting issue multi-purpose sawing wood on the stairs and the problems and issues of their age difference between the times suggested answers understanding the length of the length of the relatively few number of plane figures according to the law of three-dimensional graphics drawing simple shift times more than the number of division awareness shift more than make up less computing time learning classification problems enumerated set of numbers games planting a tree sawing...