For those looking for extra practice specifically using the Singapore methodology, this series can be used to supplement any Singapore Math curriculum and is aligned to Singapore Math for US Standards. Each level includes five types of activities or exercises. Fact Builders offer practice with specific strategies for understanding concepts, Fact Strategy Practice helps students identify and apply strategies, Apply and Build Knowledge incorporates real-world problems, Writing About Math gives opportunity for students to discover and make connections, and Challenge Questions prepare for the next step in learning. These books are black and white with plenty of space for writing; instruction is minimal since these are intended for practice and reinforcement. Answer Keys aren't included in the books; however, instructions are found in the front of each book for downloading a free answer key (PDF) at the publisher's website (http://www.mceducation.us/resources). At the grade K and 1 levels, the answer keys also include a bit of instruction that may be helpful in implementing some of the activities. Help your students become fluent using the Singapore Math methodology. The books vary in length. pb. ~ Donna
