ABC News Turn on desktop notifications for breaking stories about interest? OffOn Kelly Klein, a 30-year teaching veteran, is battling ovarian cancer. • 7 min read This teacher is leading online learning during her chemo sessions Kindergarten teacher Kelly Klein isn’t letting cancer get in the way of her teaching. During her hours of chemotherapy, Klein brings her spunk and positive attitude to her online classroom.Edwin Visalden/M Health Fairview When Kelly Klein, a kindergarten teacher in Minnesota, first battled stage 3 ovarian cancer five years ago, she had to take off about six months due to her aggressive treatments. Over the summer, when Klein, 54, was diagnosed with ovarian cancer again, she decided she would do whatever it takes to continue to be able to teach, a career she calls her passion.