When a concept goes on a pit or screen to an object that a student can make and hold in their hand, it creates connection and understanding. Making possibilities limitless. 3d pens build things in 3d. 3d means three dimensions. The pen is also known as 3Doodler. It works by exposing heated plastic in a solid-liquid form. Which turns into a hard solid form in the … [Read more...] about Best 3d Pen For Teenager: Top 10 Products Review