Science and Engineering Indicators 2008 - Table 1-9. Type of certification of public school teachers: Academic years 1999–2000 and 2003

Table 1-9
Type of certification of public school teachers: Academic years 1999–2000 and 2003–04
(Percent distribution)

	Academic year 1999–2000		Academic year 2003–04
Type of certification	All teachers	Mathematics and science	All teachers	Mathematics and science

All teachers	100.0	100.0	100.0	100.0
Regular or advanced	86.6	81.0	87.6	84.1
Probationary	2.8	3.4	3.8	4.7
Provisionary or alternative	3.2	3.6	4.3	6.3
Temporary	1.1	1.3	2.2	2.8
Emergency	0.6	1.0	0.7	0.7
None	5.8	9.8	1.5	1.3

NOTE: Percents may not add to 100 because of rounding. SOURCES: National Center for Education Statistics, Schools and Staffing Survey, 1999–2000 and 2003–04; and National Science Foundation, Division of Science Resources Statistics, special tabulations. Science and Engineering Indicators 2008