Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Arithmetic Bottle Cap / Bottle Cap

Arithmetic Bottle Cap

Arithmetic bottle caps solve the problem of preschool education in Africa in a low cost and environmentally friendly way. It can not only be used as a teaching aid, but also a toy for children's entertaining, while solving the problem of lack of teaching aids and toys in poor areas. The bottle cap contains symbols from 0 to 9 and basic operations, which meets the learning requirements of basic arithmetic. The well-designed yellow-blue contrasting color scheme improves children's identification and memory efficiency of symbols, and promotes children's visual development.


Beijing University of Posts and

Beijing University of Posts and
Beijng, China

chenglong lei,
Beijing University of Posts and Telecommunications