I had a friend in a former church who reluctantly took on an adult Bible class because no man felt qualified to teach the class. She always said that she was doing it until such a time as a man would come forward to teach the class. Eventually that role came to me but before it did she placed herself under the leadership of the church and made sure she was under the authority of the elders.
Was she wrong? Before I answer that let me quote a passage from Paul's letter to the Philippians. "It is true that some preach Christ out of envy and rivalry, but others out of goodwill. The latter do so out of love, knowing that I am put here for the defense of the gospel. The former preach Christ out of selfish ambition, not sincerely, supposing that they can stir up trouble for me while I am in chains. But what does it matter? The important thing is that in every way, whether from false motives or true, Christ is preached. And because of this I rejoice." Philippians 1:15 - 18
The motives were wrong, the people may have had incorrect doctrine but the Gospel was being preached so Paul rejoiced. The church was birthed in Philippi because of a woman.
Now it is easy for us to be right in our doctrine but still be wrong. We can be wrong while doing right.
So let me go back to my friend. I do not believe that she was sinning in teaching men in this situation. If there was sin then it was with the men who because of their lack of knowledge of the Scripture felt unqualified to teach the Word. Men cannot point the finger at women who are filling the gap if it is men who have created the gap.
On a personal note. I am pleased to be part of a church that has had strong male leadership. A church that has qualified men to lead as elders, as teachers and group leaders. I am please to be part of a church that has strong women who are willing to take the supportive role and in doing so teach by example and testimony. I have learned a great deal from the women who are members of the class and have contributed their insights. They are not consumers but contributors for which I am thankful.
Finally, we must realise that the Holy Spirit is the real teacher and he can use a man, a woman, a rooster or a donkey to teach us His truth. Let us not hinder the Holy Spirit, He is not a tame fire but a wild fire.