Williamsville Branch Holds Sixth Math Class on July 18, 2020 AYLUS Williamsville Branch July 18, 2020 All Posts Comments On July 18, 2020, the Williamsville Branch held its sixth math class. The class was held over Zoom, and we discussed a lot about casework counting. It was a huge success, as many people attended the class! Participants: Grant Wang (3 hours)