Mathew Leami (left), 11, of Zion uses a volleyball with classmates Deyonte Dowdell, 9, and Gabriel Rios (right), 9, both of Zion during the physical education class of teacher Bob DeBenette at Kenneth Murphy School in Beach Park. The school uses the program CATCH, Coordinated Approach to Child Health, that students perform noncompetitive exercise for 50 minutes at 7 different stations. | Thomas Delany Jr.~Sun-Times Media

David Freeman, 9, of Wadsworth performs a pushup during the physical education class of teacher Bob DeBenette at Kenneth Murphy School in Beach Park. | Thomas Delany Jr.~Sun-Times Media

Emmanuel Chacon (left), 10, of Beach Park and Jalani Rice, 9 of Beach Park juggle scarves during the physical education class at Kenneth Murphy School in Beach Park. | Thomas Delany Jr.~Sun-Times Media

Warming up with jumping jacks is Sydney Pederson (left), 9, Amalia Garcia, 10, both of Zion and Moses Atamata, 9, of Beach Park during the physical education class of teacher Bob DeBenette at Kenneth Murphy School in Beach Park. The school uses the program CATCH, Coordinated Approach to Child Health, that students perform noncompetitive exercise for 50 minutes at 7 different stations. | Thomas Delany Jr.~Sun-Times Media

Kenneth Murphy School physical education teacher Bob DeBenette of Beach Park explains to students the 7 exercise stations during class at the school in Beach Park. The school uses the program CATCH, Coordinated Approach to Child Health, that students perform noncompetitive exercise for 50 minutes. | Thomas Delany Jr.~Sun-Times Media

Leeanne Evans, 10, plays hopscotch with Sydney Pederson (left), 9, and Amalia Garcia, 10, all of Zion during physical education class of at Kenneth Murphy School in Beach Park. The school uses the program CATCH, Coordinated Approach to Child Health, that students perform noncompetitive exercise for 50 minutes at 7 different stations. | Thomas Delany Jr.~Sun-Times Media

Moses Atamata, 9, of Beach Park twirls a hula hoop around his neck while exercising at Kenneth Murphy School in Beach Park. | Thomas Delany Jr.~Sun-Times Media

Deyonte Dowdell, 9, of Zion warms up with situps during the physical education class of teacher Bob DeBenette at Kenneth Murphy School in Beach Park. | Thomas Delany Jr.~Sun-Times Media

Cynthia Ortiz (right), 10, of Zion and Yamari Rodriguez, 10, of Beach Park play basketball during physical education class at Kenneth Murphy School in Beach Park. The school uses the program CATCH, Coordinated Approach to Child Health, that students perform noncompetitive exercise for 50 minutes at 7 different stations. | Thomas Delany Jr.~Sun-Times Media

Taina Matus, 9, and Ashley Pacheco (right), 9, both of Beach Park skip around the gym during warmup for their physical education class at Kenneth Murphy School in Beach Park. | Thomas Delany Jr.~Sun-Times Media

Isaiah Mosley (left), 10 of Beach Park warms up with classmates Yamari Rodriguez, 10, of Beach Park and Cynthia Ortiz (right), 10, of Zion during physical education class at Kenneth Murphy School in Beach Park. | Thomas Delany Jr.~Sun-Times Media

Beginning to run laps around the gym Moses Atamata (left), 9, of Beach Park, Joshua Chavez, 9, of Zion and Daniel Jasso, 9, of Beach Park during the physical education class of teacher Bob DeBenette at Kenneth Murphy School in Beach Park. The school uses the program CATCH, Coordinated Approach to Child Health, that students perform noncompetitive exercise for 50 minutes at 7 different stations. | Thomas Delany Jr.~Sun-Times Media

Emily Pacheco, 10, of Beach Park hula hoops during the physical education class at Kenneth Murphy School in Beach Park. | Thomas Delany Jr.~Sun-Times Media

Michele Batz, Murphy School in Beach Park. | Special to Sun-Times Media