(Drill series to nurture a child clever) arithmetic brain drill three-dimensional king point connection cross-sectional view Hen ISBN: 4053030676 (2009) [Japanese Import]

This drill is representative of "flower class" where has high attention degree in the private supplementary school industry, of the "solid King" "drill series by Mr. high Masanobu Hama stretching out arithmetic brain" [sketch copying drill cross section]. ●I develop "the image power" of a three-dimensional cross section This drill focused on among four plane figures (sketch, cross section, projection chart, development) which became the key to solve space problem. There are a lot of children who feel a problem of when "it is hard", but it seems to be caused by the fact that I have an impression not to be able to arrive at a clear answer like a calculating formula exclusively (I cannot get the image of the real cut end in a head). However, this drill is not a thing needing a high logic thought. Only with the help of an image, "the parallelism 2 plane opening comes to take parallel courses", it is the purpose of this book to let you do "an actual feeling" when at first "a knife goes in this way if you cut a solid in this way and will finish asking". ●Good point and how to use "figure of solid King point show something in section ◆I develop stereognostic sensation by attached "shupa and cube" & "shupa and card" ......I make an attached cube and know form> of the cross section of the drill. Then I can solve "the cross section problem by cutting a cube" that one of a real primary schoolchild is difficult easily.