Lines and angles are everywhere they look. Young readers learn what lines and angles are. Concepts such as perpendicular and parallel lines, right and obtuse angles, and much more are explained using simple text and images.

A kid's world is made of shapes and angles--by encouraging readers to become savvy at identifying and using the different shapes, this book serves as the perfect introduction to geometry and a way to build a strong foundation in math skills that will serve them well as they are exposed to increasingly more complicated concepts. Hands-on, design-minded projects, such as designing a tree house, offer opportunities to discover how engineers and designers...