Thomas Jefferson no firmó la Constitución (Thomas Jefferson Didn't Sign the Constitution)

Games and projects introduce the concepts of coordinates and angles and how to find location and position.

Practice two-digit addition and subtraction while planning a family reunion! This charming title encourages young readers to use subtraction skills and STEM concepts to help plan the reunion by determining how many people are attending and how much the family will need to accommodate everyone. Add up the tallies to determine where the reunion should be! Calculate how many children are attending by subtracting the number of adults from the number of total guests! Examples like these and more pair with helpful mathematical charts and vivid images to make useful skills like addition and...

"Describes the U.S. Army in action, including their vehicles, weapons and equipment, and jobs."--From source other than the Library of Congress

This Spanish-language series presents the complete range of math concepts and skills students are expected to master during the first grade. The series moves sequentially, from easiest to hardest concepts, with each book covering a different math topic. The first volume reviews the math concepts students learned in kindergarten. The next six books cover counting, adding and subtracting, tables and graphs, money, patterns, and measuring. The eighth volume is a summary of the math concepts students have studied throughout the year. Each book presents situations that show the relevance of math...