Louise Armour takes Cooper, a qualified Delta Therapy Dog into classrooms at Berinba Public School in Yass three days a week.

The 10-year-old whippet even has his own school uniform.

He's very popular with students, teachers and parents Mrs Armour said.

"His calming presence provides comfort to students and teachers and helps to de-escalate situations," Mrs Armour said.

"There are a lot of children and staff that just need a dog to talk to or to pat.

"Even the school counsellor said Cooper makes them and students happier," Mrs Armour said.

The school's assistant principal Belinda Brown said they were lucky to have Cooper.

"We know the research says that therapy dogs reduce anxiety and stress, resulting in a happier environment," Mrs Brown said.

"This also benefits students and learning, building connection and calmness in our school."

Mrs Armour got Cooper at ten-weeks-old and decided to put him through Delta Therapy, which trains dogs to cope with loud noises and busy situations.

"Cooper can have 50 children run up to him in the playgroup and he just stays calm," Mrs Armour said.

"It's nice to be able to share him."

Cooper even visits children in the school's playgroup and preschool classrooms.

Students said school is better when Cooper is around and that he makes them feel safe and happy.

One female student said she "feels lost" when he's not there.

Mrs Armour thinks Cooper enjoys his job at the school as well.

"He knows when it's a school day; when I go to get my bag he seems excited," she said.

"He's a part of the school."

Cooper also visits elderly residents at Warmington Lodge and Horton House in Yass.

"Some of the elderly residents had dogs all of their lives and they live for the moment that Cooper comes in," she said.

"It's good because he doesn't jump up and scratch them and elderly people can be more fragile."