推荐理由：《Pure Sets》是一款适用于安卓系统的阅读类软件APP。Pure Sets is a program for determining sets of single digit numbers. Level one is for numbers between ① and ④ in fixed positions. Level two is for numbers between ① and ④ in random positions. Level three is for numbers between ① and ⑨ in random positions. The Pure Math family of programs help learning math bypresenting simultaneous representations of numbers anddot-patterns in order to balance right-brain andleft-brain development. These programs share a unifiedgraphical interface in to represent numeric conceptsgraphically, thereby showing interrelationships betweendifferent operations. Non-relevant associations areavoided to prevent their binding on the formation ofnumeric concepts. LEVELS: Unlike the typical levels in a game, the Pure Mathprograms allow one to switch levels of difficulty atany point in time. If there is any similarity to games,it is with those that are turn-based, where one hasindefinite time to make a move. INTERFACE: Although it may not look like much on the surface,there is a unified design for the user-interface,the envisioning of information, and a generality acrossthe whole Pure Math family of programs. The developmentwas done for for both handsets and tabletssimultaneously in order to work well for both small andlarge displays. The programs display in a full-screenmode in order to prevent young children from toying withmenu items on handsets. Combinations of blue and cyancolor items are transformed into pure white items forcorrect responses. Each of these colors should displayat a different intensity for the color-blind. Thesecolors were also selected to avoid any psychologicalconnections with traffic signals. Output is not placedon buttons but instead is placed above arrows so onesfingers do not get in the way. More frequently usedtouch-screen inputs are make more accessible at thebottom corners of the screen, and those less frequentlyused for level changes are along the top of the screen.The operation of the program is intended to beintuitively obvious without the need to read anyinstructions, so there should be lessculturally-relative and gender-relative impediments.These programs may be used at any age level in additionto those just starting to learn math, including thosethat want to fortify what they know already, andgrown-ups that want to use them as brain-exercises. Forpreschool through grade ③ students these programs are intended to help bridge the gap between the mental-imagemode and abstract mode. There are no sounds or wordswhatsoever in these programs, so learning may take placequietly without any dependence on language skills.Numbers are portrayed in their most simple forms toavoid association with any particular fonts and thegraphics are rendered in the most minimalisticgeometrical form to maximize iconoclasm and minimizeanthropomorphism, hopefully building a more pureformation of mathematical concepts without clutteringthe mind with narrative discourse and mnemonic-devices.(There is not enough space in this description to continue. Please visit the developer website to read the section about PACING).http://jmotil.blogspot.ca/《Pure Sets》大小250.87KB，在本站深受4971位玩家喜爱和下载。要找等，赶紧下载到手机吧。
