When Olympic swimmer Michael Phelps won a race by .01 of a second, we saw how significant a hundredth of a second can be! This series offers practice with decimals to build a solid understanding of the place value system.

How well do you know words? Have fun with your English skills in this charming packet!

Play the role of president. This series poses critical thinking in a playful what-would-you-do way. Scenarios leverage reading, thinking and writing skills while engaging kids in modern government.

Nature documentaries might make the animal world seem graceful, but it's actually pretty gross! Explore all the icky, sticky and smelly things animals do to help each other survive in the wild.

Let your voice be heard! This workbook challenges kids to express their opinions. But more importantly, they'll learn how to support opinions with good evidence and facts.

This workbook will challenge your fourth grader with math formulas, shapes practice and angle activities. Kids will also learn how to find areas and perimeters, classify triangles and calculate time.

Math is part of everyday life, so learn math concepts with everyday examples. Learn to calculate sales tax, discounts, income, expenses and how to get more bang for your buck!

Count and convert measurements for liquids, lengths and time with this supplemental book! So many practical skills come from knowing how to measure lengths, tell time and convert units of measurement.

Things are jumbled up at the newspaper! Your child has the know-how with the help of this workbook to set things right. Review grammar rules and practice composition through reading passages.

Learn all about the Revolutionary War with this exciting history workbook!