【已失效】 与美国K12 教育同步，一年级必背单词，一共36周，每周8个单词

与美国K12 教育同步，一年级必背单词，一共36周，每周8个单词，有对应单词的练习册而且有美音真人原声音频，可以给孩子背单词及听写。
单词都是经过科学挑选的每周都包含Sight Words 单词及一些符合Phonics规则的单词。
K12Reader offers parents and teachers free spelling words curriculum for 1st through 5th grade. This teacher-developed curriculum can help students develop strong spelling and word recognition skills, and reinforces strong reading development. A comprehensive spelling program extends past the simple memorization of the letters that make up the individual words. Weekly word lists given for the purpose of improving each student’s spelling also provide an ideal opportunity to ensure that all students are being exposed to words that will reinforce their overall success in literacy.