Modern Dance (also called Contemporary Dance in different parts of the world) developed in the twentieth century in Europe and the US as a reaction against what some people saw as the rigidity of ballet.
The first modern dancers wanted to explore natural and unique ways of moving their bodies. Today, however, ballet and modern dance training often go hand in hand and modern dance is also practised all over the world.
Because modern dance does not have a set vocabulary of movement (like ballet), but is based on movement principles, modern dance can take on many different forms.
In fact, there are as many different approaches to modern dance as there are choreographers or teachers.
A typical modern dance class consists of a warm-up, some exercises to strengthen and mobilise the body, and some exercises that travel through space like jumps and turns.