IHB - Class Size

Code: IHB
Adopted: Unknown
Re-adopted: 8/13/97
Original Code: 4500

The Board recognizes that class size is one of the factors which has an influence upon effective instruction. The Board further recognizes that achieving ideal class size is dependent upon the resources available to the district.  To provide the most appropriate learning situations, class size shall be determined by the following criteria and guidelines:

  1. The age and grade level of the students:
    1. Ideally, primary grades shall range from 20 to 23 students and will exceed 25 only when, in the discretion of the superintendent, circumstances require;
    2. Ideally, intermediate grades shall range from 25 to 28 students and will exceed 30 only when, in the discretion of the superintendent, circumstances require;
    3. Secondary school classroom sizes shall be based upon criteria and guidelines 2, 3, 4 and 5 listed below.
  2. The degree of need for individualization of instruction based on curriculum content, teaching methods and expected outcomes;
  3. The capacity of teaching facilities, i.e., number of teaching stations and number of student stations;
  4. The availability of equipment for teacher demonstration and student use;
  5. Conditions which affect the health, safety and supervision of the students.

Legal Reference(s)

ORS 243.650
OAR 581-022-1630

Tualatin Valley Bargaining Council v. Tigard School District 23J, Case No. UP-42-89, 11 PECBR 590 (1989); motion to stay denied, 11 PECBR 777 (1989); aff’d, 106 Or. App. 381 (1991); review allowed, 312 Or. 16 (1991);  rev’d and remanded, 314 Or. 274 (1992); order on remand 14 PECBR 321 (1993); aff’d, 128 Or. App. 59 (1994); review denied, 320 Or. 272 (1994).