Introduction and definitions

Until recently, “blended learning” described all teaching/learning concepts that provide a didactically meaningful combination of classroom events and virtual learning based on new information and communication media.

The Leibniz-Institut für Wissensmedien (IWM) offers the following definition on its portal,

“All teaching scenarios that do not exclusively take place face to face or online may be deemed blended learning or hybrid learning; i.e. a combination of virtual and non-virtual teaching settings and methods”.1

As pandemic times prevent or severely restrict the possibility of classroom teaching, we understand blended learning as a didactically meaningful combination of:

  • synchronous2 “in-person” classes in a virtual or physical classroom (or in a hybrid classroom; i.e. some students in a physical classroom with a live webcast for those not present)
  • with independent asynchronous3 learning based on new information and communication media.

1 Source:, 15 June 2020
2 Synchronous: sharing a physical, hybrid or virtual location at the same time
3 Asynchronous: not dependent on time or location