Maybe I'm just lucky, but I've never had a problem!
When I'm doing work, Britney is happy just laying in my lap. Brooklyn normally either amuses himself with toys or plays with the cat.
I don't normally have time to take them for walks during the week, so we normally take a couple of long walks during the week. Yesterday we went to a few parks and today we took a nice long walk to the farmer's market.
Get a second one!!
Hope your student teaching is going well.