Simplifies complex math concepts. Explains concepts using reallife situations and familiar objects. Clear linkage between text and photos. Words You Know sectio... » 

Simplifies complex math concepts. Explains concepts using reallife situations and familiar objects. Clear linkage between text and photos. Words You Know section to reinforce text. Index Fullcolor photographsCurriculum Standards Grades K4 Science StandardsScience as Inquiry I Employ simple equipment to gather data NCTM PreKGrade 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 mentalcomputation estimation paper and pencil and calculators Understand the effects of adding and subtracting whole numbersProblem Solving Standard Build new mathematical knowledge through problem solving «