A second-grader battling leukemia during the pandemic was saved from falling behind in class, thanks to a teacher who went the extra mile for him. Barb Heim, who’s taught first grade at Conneaut Valley Elementary in Conneautville, Pennsylvania, for 35 years, brought lessons to Harrison Conner when he couldn’t make it to class. Driving 20 minutes from school to his home every night, Heim says she’s the lucky one. “It was a joy, because I knew he wanted to learn,” Heim told Today. “He couldn’t wait. He was so excited.” Undergoing treatment, Harrison stayed home while his classmates returned to school for in-person learning last fall. Wearing a mask and a face shield, Heim tutored the second-grader through a plexiglass screen in a space carved out for study in his living room. While the physical stresses of treatment sometimes meant Harrison had to take a rest day, Heim’s student “always did his best,” …