This workbook is swift to get through, much like the mushers who participated in The Great Race of Mercy. Through reading passages and math problems learn about the event that saved lives.

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.

Here's an arsenal of April Fools' Day fodder! Kids will be armed with facts, pranks and puzzles. Plus, they'll be tickled by goofy writing prompts, silly word problems and wacky reading comprehension.