Keyphrases
Instructional Materials
100%
Student Outcomes
100%
Math Achievement
100%
Online Material
50%
Middle School
50%
World Wide Web
50%
Potential Gains
50%
Warehouse
50%
Teacher Quality
50%
New Resources
50%
Large Gain
50%
Teacher Effort
50%
Teacher Skills
50%
Search Costs
50%
Teacher Experience
50%
Traditional Classroom
50%
Math Teachers
50%
Real Benefit
50%
Computer Science
Student Outcome
100%
Math Achievement
100%
Field Experiment
100%
Instructional Material
100%
Teacher Quality
50%
Potential Benefit
50%
Social Sciences
Mathematics
100%
Teaching Material
66%
Standard Deviation
66%
Middle School
33%
Economics, Econometrics and Finance
Measure of Dispersion
100%
Information Costs
50%