Joshua Zhang is 8 years old, a third grade student at Happy Hollow
He has earned his Taekwondo blue belt. He is also good at writing, drawing and piano.
Joshua's sister, Sarah Zhang, is 12 years old, a sixth grade student at Wayland Middle School.
She has earned her Taekwondo red belt. She is also passionate about violin, piano and ballet.
Their father, Dr. Yuegang Zhang is a scientist. The Zhang family lives in Wayland, Massachusetts.