Summary:
This analysis examines 10 elementary schools (grades K-6) within the Chino Valley Unified district in zip code 91709 (Chino Hills, CA), revealing a generally high-performing cluster where all schools exceed state averages, though significant differences exist between top and lower-ranked schools.
Country Springs Elementary is the clear standout, ranking in the 99th percentile statewide, while Glenmeade Elementary ranks the lowest in the area at the 70th percentile. Other consistently strong performers include Michael G. Wickman Elementary and Rolling Ridge Elementary, both in the 96th percentile. Most schools form a strong middle cluster between the 84th and 93rd percentiles, including Eagle Canyon Elementary, Gerald F. Litel Elementary, Chaparral Elementary, Butterfield Ranch Elementary, Hidden Trails Elementary, and Oak Ridge Elementary.
A key finding is the strong link between low chronic absenteeism and high academic performance; top schools like Country Springs and Hidden Trails have absenteeism below 3%, while Glenmeade's rate of 16.4% coincides with its lower ranking. Science scores show the widest performance gap between schools, and per-student spending does not directly correlate with outcomes, as Glenmeade has the highest spending but the lowest performance. The variation within this single zip code suggests school-level factors like culture and instructional approaches play a significant role in student success.
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