Singapore Math's trademark strategysimple
explanations for hard
concepts-works! M
SProblems and bar models are
reproduced from Singapore Primary
Mathematics Teacher's Guides, 3A (2003),
4A (2004), and 6B (2006), (U.S. ed.),
Oregon City, OR: SingaporeMath.com.
Copyright by SingaporeMath.com.
Used with permission. Available:
www.singaporemath. coin