Give the subject of energy a zap! This workbook offers a brief overview of energy, its sources and uses. With clear vocabulary and illustrations, it's a great introduction to what fuels us.

This workbook gives second graders practice in punctuation, and helps to develop their vocabulary with contractions and compound words.

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

In this arrays 101 workbook, we explore and practice concepts like multiplication, repeated addition, factors, and products — all using arrays!

Make sense of cents and dollars with this essential workbook!

This workbook is packed with challenging third grade spelling words that your child can practice writing and applying to his or her vocabulary.

Focusing on homophones, common words and challenging compound words, this workbook will boost the confidence of your young speller, and help him prep for any upcoming spelling bee!

Learn about presidents Washington, Lincoln and Obama. Reading quizzes, writing in academic formats, color-by-numbers, history timelines and designing monuments: This workbook has it all!

This fraction workbook covers fraction equivalents, simplification, adding and subtracting and improper fractions.

The reading and writing practice in this workbook will get kids thinking about all the different parts that go into a good story, like vocabulary, structure and sequencing.

Expand children's problem-solving arsenal with this fundamentals of multiplication workbook.

Embark on a worldwide animal safari with this nature-lover's workbook! Learn about animal habitats, endangered species and more, all while honing reading comprehension skills.

Get acquainted with the original GPS...maps! This geography workbook goes over all the fundamentals of finding your way, from cardinal directions to map scale, landforms and more.

Suffixes, verb tenses and plural nouns boil down to simple spelling patterns in this workbook. Kids will handle S, -es, -ing and -ed. It's all in the endings!

This workbook makes grammar practice fun for your child by applying it to games and storytelling.

Get your second grader's creativity flowing with this workbook, boasting all of the right stuff he needs to create events in a sequence, and eventually even pen his own prompts!

Fractions and decimals are way more fun when you apply them to real life scenarios, like parties, food and pets! This workbook teaches kids all about splitting up numbers.

Find your inner musician with this fun-filled workbook all about music. Read about the history of different music genres, and learn to read music on the piano and guitar too!

Count on this vocabulary-focused resource as the go-to workbook all about natural resources! Write, research and get a breakdown of the world around by the natural resources we need and use.

Build basic language skills with this useful workbook!

Elevate your language skills in this exceptional workbook!

The Corps of Discovery kept journals on their two-year-long journey. This workbook challenges kids to flex their spelling and grammar skills while reading about the trip in the words of the men.

In this workbook kids will measure time, distance, and masses to hone their measurement skills for math and beyond!

This workbook builds reading comprehension by reinforcing vocabulary with word puzzles, homophones and a few quick reading pages.

Children learn about a variety of aspects of Native American life and culture in this social studies workbook.

This workbook offers a good range of multiplications activities to strengthen your third grader's math muscles.

Whether by sea or by land, kids will sharpen 5th grade geometry skills in a fun way with this workbook.

Exponentially expand your math skills in this excellent workbook!

Upgrade your language arts abilities in this effective workbook!

Step up your math abilities with this foundational workbook!