  Nowadays, the video documents like educational courses available on the web
increases significantly. However, the information retrieval systems today can
not return to the users (students or teachers) of parts of those videos that
meet their exact needs expressed by a query consisting of semantic information.
In this paper, we present a model of pedagogical knowledge of current videos.
This knowledge is used throughout the process of indexing and semantic search
segments instructional videos. Our experimental results show that the proposed
approach is promising.
