– Simplifies complex math concepts.- Explains concepts using real-life situations and familiar objects.- Clear linkage between text and photos.- Words You Know section to reinforce text.- Index- Full-color photographsCurriculum Standards: Grades K-4 Science StandardsScience as Inquiry: I- Employ simple equipment to gather data- NCTM Pre-K-Grade 2 National Math StandardsNumber and Operations Standard- Count with understanding and recognize how many in sets of objects- Use a variety of methods and tools to compute, including objects, mental computation, estimation, paper and pencil, and calculators- Understand the effects of adding and subtracting whole numbersProblem Solving Standard- Build new mathematical knowledge through problem solving