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Table 2. Average age, average years of experience, percentage female, percentage out-of-field, percentage with both a major and certification in field, and percentage working full time for public and private K–12 teachers, by employment background: 1999–2000
Employment
background
Average
age
Average
years of
teaching
experience
Percent
female
Percent
teaching
out-of-field
Percent with
both major
and certifica-
 tion in main
assignment
field
Percent
full time

     All teachers 42 14 75 12 61 90
Continuing teachers 43 16 75 11 63 93
Transfers 38 10 75 15 55 80
Returning teachers 41 11 75 26 45 58
Delayed entrants 33 1 75 38 27 85
Recent graduates 27 1 73 17 47 90

NOTE: Average years of experience includes the 1999–2000 school year in its count of years of teaching. “Out-of-field” teachers have neither an undergraduate or graduate major nor certification in the field of their main teaching assignment.

SOURCE: U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey (SASS), “Public Teacher Questionnaire,” “Charter Teacher Questionnaire,” and “Private Teacher Questionnaire,” 1999–2000.

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National Center for Education Statistics - http://nces.ed.gov
U.S. Department of Education