my tessellation pattern

Tessellation is a shape reapeted over and over again in a pattern/example:
http://www.mathcats.com/explore/tessellations/tesshouses.html

swimming 4th lesson

Splash! I carefully did a standing dive into the pool,''hello''said a voice ''it was our instructor''.Well he told my group to swim 50 meters  freestyle,then we did some breaststroke kicking.Finally it's time to do breaststroke with arms,I had lots of fun doing the forward roll and a handstand in the water,next time I think I need to stay in the correct lane because when i did backstroke I bumped into someone.

Second lesson swimming

Today room 2 went swimming,it was our second lesson.First I did some kicking then I did backstroke,I think I need to work on staying in the same lane.