Synthetic resolution study teaching aids of a quantity by the B ball seesaw

摘要

Topic The small school it is low, through the manipulation of concrete ones which have game Characteristic vis-a-vis the children who have weak point consciousness in study of synthesis resolutions of the quantity up to 10 where it becomes the foundation of addition and the subtraction in the introduction period of grade, it tackles study continuously without the excessiveness, assures understanding and acquiring.SolutionsUp to 10 rolling the B ball 19 of two cutting from 1, synthesizing in one cutting, rolling the B ball of that one cutting in order to be able to make the manipulation resolution in two cutting simple, you installed the fulcrum stick 18 of the seesaw on the reverse side of the box, installed separable stick 13 in one arm of the box. In addition, game Characteristic is raised and when in order continuously to be able to tackle study with interest, the bottom of the box brass nail 16 is laid out extensively, the various B ball rolls and hits to that putting out the clean sound like the liquid gold , blindfold cover attaching 14a 14b 14c as been able to taste the enjoyment which presumes the number of B balls, it formed. Choice figure Drawing 1