SUPERINTENDENT’S RECOMMENDATIONS: Additional Information Capacity Utilization Arlington Public Schools December 17, 2009 1

Class Size Terms Planning Factors (PF) Approved formulas in which staffing, materials, and supplies are allocated to schools. Recommended Maximum Class Size (RM) An approved recommended number that a class size should be within and not greater than. Capacity Planning Factor (CPF) A constant that is multiplied times the number of K-5 classrooms in a building to determine K-5 capacity (currently: 22.33 students) Increase Class Size by One Increase recommended max by one at each grade level; may or may not change number of students in an individual class depending on grade, school, school year

Current Planning Factors compared to State Maximums APS 5th Grade APS 4th Grade State maximum – 4-5 APS 3rd Grade State maximum - K State maximum – 1-3 APS 2nd Grade APS 1st Grade APS K 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

Illustrative Example: Impact of Class Size Increase by One on 2009-2010 Elementary Staffing Based on a class size increase of one student on 2009-2010 enrollment, schools would have seen a reduction of 20 elementary classes Kindergarten – decrease of five classes countywide Grades 1–5 – decrease of 15 classes countywide

Capacity Numbers: MGT & APS Differences in capacity numbers due to four reasons: Variation in formula (same number of rooms) Current use vs. potential use Clarity of detail due to 30,000 foot view from MGT Adjustments to room uses not yet captured by APS (last capacity update Aug 09)

Enrollment Projections: MGT & APS Differences in projection numbers due to variation in methodologies APS selects a single methodology MGT uses a combination methodology APS staff and MGT are confident in APS’ methodology Historically accurate within 2% systemwide Updated twice yearly

Information and materials related to process: Web Page Information and materials related to process: http://www.apsva.us/elemcapacity In addition, the web page has an e-mail option for comments and suggestions. Thank you again for coming, we appreciate your input and time.

SUPERINTENDENT’S RECOMMENDATIONS: Additional Information Capacity Utilization Arlington Public Schools December 17, 2009 8