You may see this:
3D Prototype Recognizer
Children can recognize some prototypical 3D shapes, such as the sphere and cube, using formal or informal names. However, may use 2D vocabulary to name some 3D shapes and describe solids using a variety of informal characteristics, such as "pointyness" or "slenderness."
![Look at Mystery Boxes [3D Prototype Recognizer]](https://www.learningtrajectories.org/upload/1599850947090.png)
![Shape Hunt [3D Prototype Recognizer]](https://www.learningtrajectories.org/upload/1603215376228.png)
Special Thanks To
The research reported here was supported by the Institute of Education Sciences, U.S. Department of Education, through grant numbers R305K050157, R305A120813, R305A110188, and R305A150243. to the University of Denver. The opinions expressed are those of the authors and do not represent views of the Institute or the U.S. Department of Education.
