Article Photos: Get App-y: When your kids move past you in math

The Khan Academy team, led by Salman Khan and pictured here in January, has grown in recent years thanks to grants and support from foundations, corporations and individuals. PHOTO PROVIDED. <strong></strong>

The Khan Academy team, led by Salman Khan and pictured here in January, has grown in recent years thanks to grants and support from foundations, corporations and individuals. PHOTO PROVIDED.