The Importance of Kindergarden Classes (video) National Science Foundation Share Print E-Mail Loading video... Caption Harvard University economist John Friedman says the impact of increasing kindergarten teacher experience looks really big for students long-term success. He says the study should highlight for policymakers the importance of kindergarten classes for students in all demographics. Credit National Science Foundation Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.