Best teacher everrrrrrrrrrrrrrrrrr
RNS is #SWAG and you are #SWAG and you are the best teacher ever
Challis is amazing man. Probably the best teacher ever..
He is a very kind teacher! I love it when he lets us eat some of his wassabi beans in class
A wonderful man who has a great passion for physics. Just what is required from a physics teacher. Looks after all students if his class teachers everyone on their ability. Great teacher!!!