The yellow highlighting shows changes from the 2011-2012 budget document.
Read the 2011-2012 document at this link.
For example, in the box for Classroom Teacher under Elementary Guideline we see that the following sentence has been added to the 2012-2013 staffing guidelines:
"When numbers support it, positions are allocated for combination classes."There are many other changes to the document that will reduce or change the number of staff at local schools next year. There are also more instances where staffing is at the discretion of the local principal, and a number of positions do not give the details of actual allocations.
Remember that this document is prepared at the secret budget table by MCPS administrative staff, the 3 Unions, and MCCPTA select officers. This document is not prepared at the public Board of Education table by the elected Board of Education.
FY 2013 K-12 Staffing Guildelines