expertise group
between-expertise contrast
within-expertise contrast
Participants number (randomly numbered)
Sex of participants
Teaching domains
Working experience as teachers (in years)
Further training for technology-enhanced teaching
Own a Tablet (privat)
Use of technologies for teaching in last half of a year
Equipment of tablet-pc at school
video player tool
students dynamic geometry environment
audience response system
file transfer service
presentation program
web search engine
Discursive learning scale (scale mean)
General attitude towards technology (scale mean)
Self-efficacy beliefs (scale mean)
Perceived utility-value of educational technologies (scale mean)
Technological knowledge (scale mean)
Technological knowledge in percentage
Content knowledge (sum test)
Content knowledge test in percentage
Pedagogical content knowledge (sum of categorization)
Instructional quality of the lesson plan
Instructional quality of lesson plans in percentage
Quality of technology integration within the lesson plan