Animals in the classroom and focusing

I noticed that on the days when Oliver comes I children are more likely to focus on their work. They try to move around the classroom with more caution and keep the noise level down. They know he has sensitive ears! He comes in from time to time and our Montessori classsrom transforms into a focusing environment. Just are a look at this set: multiplication with Oliver by your side. Notice that even the dog has to follow the rules like keping his body off the rug and avoid putting materials in his mouth!