Medically reviewed by Tyra Tennyson Francis, MD Fact checked by Rich Scherr Medically reviewed by Tyra Tennyson Francis, MD Fact checked by Rich Scherr Being 5 years old is epic. Little ones are ...

Learn more. Five-year-olds start to become truly social as they approach kindergarten, and love group play and games. That means the best gifts for 5-year-olds include classic board games.

Identifying 2D shapes Find out about regular 2D shapes and irregular polygons. What is an angle? Discover the different types of angles and how to make sure you get the biggest slice of pizza.

Two-dimensional (2D) shapes are completely flat. They cannot be picked up. 2D shapes can be found printed in a book or you can draw them on a piece of paper. 2D shapes have sides and corners (also ...