This class was dedicated to marine topic. 

At the beginning of the class teacher Cara  showed our kids pictures of big blue waves in the sea. They discussed all together how waves go, how they look like, etc. 

Next, she fixed absolutely clear white paper on the blackboard, took a bowl with blue paints and a brush. Suddenly some magic happened! She started to color the paper with blue paints and kids could see that not  the whole  paper  is possible to color. 

There are still white lines of waves left even after trying to color it with paints! Teacher explained that the secret is very simple. She used white chalks on white paper that is impossible to color in general! 

Later she handed out white papers to babies with white chalks. Kids had to draw their own waves and color it with blue color as well as teacher did.