Usage is quite different from use!
For example, when we refer to word usage, we mean the conventions for using words:
With word usage, we are interested in:
On the other hand when we refer to the use of words, we mean only the employment of words:
People frequently use usage when they should use use. The noun usage should not be substituted for use when the meaning is 'the employment of' – even if you think it sounds more sophisticated.
Neither of the following is correct:
In both of the previous two examples, use is the appropriate word.
Returning to our opening example, we need:
Even better, avoid use altogether and begin with a more coherent theme:
Technology plays an important role in effective learning.
Learning is more effective with the help of technology.
Incidentally people also write utilisation when they mean use. That's another one likely to get you into trouble, so just avoid it. Use is all you need!