10,769 − Summer express workbooks, one each for students in K-5; 7,188 − Scholastic STEM (science, technology, engineering and math) workbooks, two each for students in grades 4-5; 3,715 − ...

One day in late October, while he covers for fifth-grade teacher Ms. Mary Hejnal, he gives students Raymond and Tristen multiplication fact worksheets – just to drill their math facts.