is for  Axis

By Buștiuc Arina, Gaudeamus High-School, Molodova

is for Binary digits

By Buștiuc Arina, Gaudeamus High-School, Molodova

is for Central symmetry

By Buștiuc Arina, Gaudeamus High-School, Molodova

is for DECIMAL POINT

Rabia Ç. Zübeyde Hanım Secondary School, Ümraniye, Turkey

is for EQUATION

    =

Şevval K. Zübeyde Hanım Secondary School, Ümraniye, İstanbul

is for FRACTAL

Kayra E. Zübeyde Hanım Secondary School, Ümraniye, Turkey

is for Geometry

Aybüke,Baruthane Secondary School, Turkey 

Geometry is the sub-branch of mathematics that deals with spatial relations. Greek Γεωμετρία is a name derived from the combination of "Geo" (place) and "metro" (measurement).

Geometry is derived from the words land measurement.
https://tr.wikipedia.org/wiki/Geometri

is for Hexagon

Bedirhan,Baruthane Secondary School, Turkey

A hexagon is a polygon with six sides and six corners. It is also called a regular hexagon if its sides and inside angles are equal. (https://tr.wikipedia.org/wiki/Alt%C4%B1gen)

Honeycomb is a place for bees to store honey that they obtain from flower pollen and to shelter their eggs. Its shape is hexagon, which is the best shape to use the most space with the least material.

is for Icosahedron

Ege, Baruthane Secondary School, Turkey 

In geometry, an icosahedron is a polyhedron with 20 faces. The name comes from Ancient Greek εἴκοσι 'twenty' and from Ancient Greek ἕδρα 'seat'. The plural can be either "icosahedra" or "icosahedrons". There are infinitely many non-similar shapes of icosahedra, some of them being more symmetrical than others.

is for John Napier

Napier, a Scottish mathematician, is known as the inventor of the logarithm.

Ionela Lefter, Vasile Alecsandri High School, Republic of Moldova

is for Koch snowflake

By Onofrei Emil, Gaudeamus high school, Moldova

is for Line

A straight infinite path joining an infinite number of points in both directions.

Rotaru Valentin ,"Virgil Ierunca" Theoretical High School, Ladesti - Romania

is for Median Value

Syla B. Zübeyde Hanım Secondary School, Ümraniye, Turkey

The Median is the "middle" of a sorted list of numbers.

To find the Median, place the numbers in value order and find the middle.

is for Negative Numbers

Deniz M. Zübeyde Hanım Secondary School, Ümraniye, Turkey

-

-

is for  ORIGAMI

Süeda S. Zübeyde Hanım Secondary School, Ümraniye, İstanbul, Turkey

is for Parallel Lines

Hasret K. Zübeyde Hanım Secondary School, Ümraniye, İstanbul, Turkey