**4.1 Creating effective interaction using CCAF model**

Traditionally interactivity in the teaching-learning process has been described in 4 levels.


In the CCAF (Context, Challenge, Activity, Feedback) model of e-learning design, the intention and outcome of the learning focus on creating immersion, even if the context is simple. Context (C) provides a real-world environment where the results of the challenge (C) can seem to be real. Activity (A) provided by the gesture represents actions to be taken in the real world in the form of meaningful behavior. Feedback (F) provided allows the learner to reflect on intrinsic components of learning based on the context (**Figure 3**) [14]. The components of CCAF guide the structuring of the learning events and should not be confused with learning phases.
