. . . "ct, transform & concrete solutions- MATH: Understanding 2D, 3D & 4D imagesFREE Bonus Gifts Included With Your Purchase of What Is STEM?You can download a FREE MP3 audio recording of What Is STEM?, Coloring Pages, and more with your purchase of this Kindle ebook.* NOTE: This book does NOT list hands-on activities or projects to learn STEM. However, it links to resources that do, such as our pop" .