Use or Usage

The usage of technology is very important to learn effectively.

Usage is quite different from use!

For example, when we refer to word usage, we mean the conventions for using words:

This text describes the principles of word usage.

With word usage, we are interested in:

how a word is conventionally used in a certain communicative context
how a word is conventionally used next to other words in a sentence
how the same word is conventionally used in a particular language
(The Indonesian meaning of 'convenient', for example, is not quite the same as the English meaning. 'Convenient' is used in different contexts in English and in Bahasa Indonesia.)

On the other hand when we refer to the use of words, we mean only the employment of words:

He is noted for his frequent use of wrong 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:

The wise usage of computers saved the company money.
Usage of insulation can save fuel.

In both of the previous two examples, use is the appropriate word.

Returning to our opening example, we need:

The use of technology is very important to learn effectively.

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!