By Tammy Marashlian
Signal Staff Writer
tmarashlian@the-signal.com
661-259-1234 x525
Posted: Dec. 12, 2009 8:14 p.m.
POSTED Dec. 13, 2009 4:55 a.m.

Hardly any kids were playing tether ball. There were no lines for handball.

Music was blasting pop and dance tunes, but during a recent lunch period, the blacktop playground at Rosedell Elementary School was nearly empty.

The nearly 650 students were spending their lunch racing around the school’s grassy …