这是套2010年获奖的美国小学数学教材.而且是最新的版本。由Houghton Mifflin Harcourt出版， HOughton Mifflin Harcourt是全球第三大教育出版公司。 看了这套数学教材，觉得它很全面，但又比较简练，质量较高，适合于教学。另一加州教材则过于考虑全面性，非常繁！ Global education leader Houghton Mifflin Harcourt's (HMH) GO Math! program was honored recently as one of District Administration's Top 100 Products of 2010. The magazine's readership, primarily teachers and administrators, chose the instructional products they felt improved their students' performance during a financially difficult school year. With its focused, scaffolded approach, GO Math! is economical, innovative and streamlined, all important qualities to educators today. 这套小学教材包含K级―――6年级，一共7个级别，分别对应于幼儿园到小学6年经的的7个级别。 | 
雷达卡
