CBS Boston 5/11/16: Wayland Teens Teach Inner City Kids Lifesaving Swimming Skills. Here’s a shocking statistic as the weather warms up: 70 percent of African American kids don’t know how to swim. And drowning is the second leading cause of unintended death in kids under 14. When a Wayland High student heard those numbers six years ago, she decided to start a program to teach METCO kids how to swim, for free.