Aikaterini Goltsiou/ Athens Greece

6th Grade students

12th Primary school Agiou Dimitriou

Athens Greece

Eratosthenes:I discovered the first numbers.

I also measured the diameter of the earth only by recording the shadow and I am the father of the number π.

Hypatia: I lived in Alexandria and studied mathematics and astronomy.

Pythagoras: I wrote the theorem of a right triangle

When two parallel lines intersect two other lines, then the segments defined by one are proportional to the corresponding segments of the other.

Kokkinou Xanthi

2nd Primary School of Ampelona