只要考虑到一件物品、一种考虑、一种可行的方案时，就在备忘录中创建一个条目。
An entry is made in the memo whenever an item, memo, and an available size pair is considered.
把数字和一个具体物品的一种属性联系起来，是形成真正的数感的一大障碍。
Associating a number as one of the qualities of a specific object is a great hindrance to the development of a true number sense.
（美国人）甚至在婴儿时期就拥有自己的卧室，这会使人产生这样一种观念：她有权拥有一个属于她自己的地方，在那里她可以独处、可以保存她的物品。
Having one's own bedroom even as an infant, fixes in a person the notion that she is entitled to a place of her own where she can be by herself, and keep her possessions.
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