particular educational activity-the better equipped we are to
cope when the unexpected happens.
Certainly, it will be important to keep in mind the three main
spheres of learning whenever we are planning any kind of exten-
sion activity.
It will always be crucial to ask ourselves whether our
objectives relate to knowledge acquisition or skill develop-
ment or attitude formation. Because this distinction, more
than anything else, will determine what our extension
methods will be.
So, let us imagine a few different scenarios and consider how we
would decide which of the three modes of communication would be
dominant in each case:

First Scenario: A training session for funds or carpenters;
 Objective- that they will be able to adapt traditional
 baskets so that they are suitable for rapid
 drying of maize and safe from attack by ro-
 dents.
 We are in the spheres of knowledge and skill.
 The most appropriate modes would be presentation in the form
 of plans, diagrams and demonstration of construction proce-
 dures-followed by action in the form of practice. Action-based
 learning would be the most important, because it is not possible
 to develop skills merely by reading about them or watching a
 demonstration.


 Second Scenario: A field day for farmers;
 Objective- that they know when and how to shell and
 treat maize ready for storage.
 Again, we are in the spheres of knowledge and skill.
 And, again, there is bound to be a phase of demonstration in the
 presentation mode; but it would be important to give plenty of
 opportunity for action-based learning-encouraging the farm-
 ers to try out the procedures of shelling, dusting the grain with
 insecticide and making sure that it is mixed properly with the
 grain.