Skip to content# I See Platonic solids In Your Future

**Classifications**

**Additional Inspiration**

### Beckmann, S. (2013). Mathematics for elementary teachers with activities (4th ed.). Boston: Pearson Education.

Author(s): Sayonita Ghosh Hajra

What is the three-dimensional shape inside the classic Mattel Magic 8-Ball toy? This hands-on activity explores the intriguing fact that there are only five different types of Platonic solids, whereas there are infinitely many regular polygons.
This session is also suitable for student math circles or the classroom.

Topics covered: Geometry

Session styles: Work Backwards

Mathematical practices: MP1 – Make sense of problems and persevere in solving them., MP3 – Construct viable arguments and critique others’ reasoning., MP4 – Model with mathematics., MP5 – Use appropriate tools strategically., MP7 – Look for and make use of structure., MP8 – Look for and express regularity in repeated reasoning.

Supporting materials: Facilitator Guides, Featured in MCircular

Associated Math Circles: MTC Network