To teach is to disciple. Good discipleship produces maturity as requirement is placed upon the one being taught—but without the requirement to produce the thing being taught we’re going nowhere except to fill the time or create a religious impression.
In the same sense, the test at the end of the class reflects diligence and application. Our Lord taught His disciples with a result in mind: that they would be willing to change, leave behind THEIR plan, study to know HIS, and then actually do the plan.
Depending upon the culture, there are certain priorities as to how our lives are invested but disciples of Jesus Christ transcend the culture to establish the Lord’s presence and His priorities in the lives of those around them—one person at a time.
To teach is to disciple. All disciples are taught but not all teaching will produce disciples apart from the training element which is where the requirement comes in. Where is our much teaching taking us? What is the measure of our life-investment? If I alone am impacted then I am not really a disciple but a hearer only.