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萤火虫飞上河岸,在芦苇和蔷薇丛间闪闪放光;青蛙像木鱼一样地敲起来,跟纺织娘的叫声合成夏夜的二重唱;艾烟弥漫在空中,老年人拍着蒲扇。我们一排儿坐在一枝横倒的樟树干上,对着夜色笼罩下的旷野,争着讲鬼怪故事。故事是越来越可怕,我们也越挨越紧。
萤火虫飞上河岸,在芦苇和蔷薇丛间闪闪放光;青蛙像木鱼一样地敲起来,跟纺织娘的叫声合成夏夜的二重唱;艾烟弥漫在空中,老年人拍着蒲扇。我们一排儿坐在一枝横倒的樟树干上,对着夜色笼罩下的旷野,争着讲鬼怪故事。故事是越来越可怕,我们也越挨越紧。
It has been proven that children benefit immensely when parents take an active role in their education. Skill Sharpeners Math, Grade K provides the frequent, focused practice needed to help ensure mastery and retention of skills. Parents have a wonderful opportunity to support what happens in the classroom, inspiring their child's desire to learn. The math skills practiced in this book are based on the five strands of the National Council for Teachers of Mathematics (NCTM) standards. Contains ten units of grade-appropriate practice to help your child understand and maintain important math skills. After every unit, there is an assessment that tests your child's understanding of the skills covered. Some questions are presented in standardized test format.
萤火虫飞上河岸,在芦苇和蔷薇丛间闪闪放光;青蛙像木鱼一样地敲起来,跟纺织娘的叫声合成夏夜的二重唱;艾烟弥漫在空中,老年人拍着蒲扇。我们一排儿坐在一枝横倒的樟树干上,对着夜色笼罩下的旷野,争着讲鬼怪故事。故事是越来越可怕,我们也越挨越紧。