Grab your jumbo popcorn—you're invited to the premiere of a 3-D movie, all about those three dimensions! Trusted math picture book duo David A. Adler and Ed M

Grab your jumbo popcorn and 3-D glasses, because you're invited to the premiere of a 3-D movie! the star-studded cast of monsters will help you calculate the pe

In this fun look at area and perimeter, dinnertime becomes a real mess as guests rearrange the carefully placed tables and chairs.

Lots of area, perimeter, volume, and surface area practice problems with an answer key. Area and perimeter problems can be completed by younger students. The bo