Two-Digit Numbers Big Book

The large text on each page introduces or defines the topic. The body of the text then explicitly explains the concept with the many photographs providing real world context. The photo captions provide more information about the topic and are sometimes posed as questions to foster further inquiry and discussion.

Some key concepts in the Two-Digit Numbers Big Book include:
– Understands operations of addition and subtraction
– Uses strategies to solve addition problems
– Uses strategies to solve subtraction problems
– Determines whether to add or subtract
– Uses the Read, Plan, Work, Check plan to solve problems.