The TLE presently contains over 3,300 videos from 1,100 unique classroom sessions. These videos are featured in various collections, the largest being the Measures of Effective Teaching Extension (METX) collection. Additionally, the High-Leverage Practices (HLP) Video Exemplars collection features over 80 video clips that illustrate the TeachingWorks HLPs. The Grand Rapids Elementary Mathematics Laboratory (GREML) collection contains 40 videos capturing a week-long mathematics workshop with 5th grade students.
In the future, the TLE will add to its ever growing sets of videos with the addition of new collections. Stay tuned for more information about these upcoming collections here