Professional Meeting Bank. Each year the Board shall contribute professional meeting leave days to each building equal in number to three-fourths (3/4) of the number of teachers in each building. Teachers shall use such leave days for the purpose of attending a workshop, state tournament (limited to head coaches/advisors only), clinic or conference relating to their field of teaching or co-curricular assignment as approved by the Superintendent or designee. Unused professional meeting leave days shall be cumulative up to a maximum of two (2) times the number of teachers in the applicable buildings.