As soon as my teacher walked into the classroom, I noticed that he brought his furry dog along. The dog was quite big in size and had long, dark ears that flopped down to the side of its head. Despite its size, the dog appeared to be extremely friendly and began wagging its tail excitedly as it greeted everyone in the room.

However, as soon as the dog saw a student getting up from their seat, it quickly jumped towards them to play, which made the student quite scared. Despite this, the dog continued to run around the room energetically, showing no signs of being tired.

As the lesson proceeded, the dog seemed to lose interest and began walking around the room, occasionally stopping to sniff at different objects. Despite its long legs, the dog didn't seem interested in jumping anymore. Overall, the dog added a lively and amusing element to the classroom experience and made everyone's day a little brighter.