Christians, by teaching what false doctrine are many taught to worship Satan,

[David G]

right ...? from their own Sunday school classes?

When answering, please keep in mind that religion is one of Satan’s hidden dynasties; thus, he and his helpers do some of their “best” work from the pulpits of many Christian churches.

[jun d]

God has angels. Satan convinced some.
God has His Church. Satan built his own.

Always wanting what God has.

[roccopaperiello]

The "inerrancy" of the Bible and the "infallibility" of the Fundamentalist who interpret it.

Matthew warned about false prophets and teachers

[Jill]

You are very correct. Satan is now in the churches.

http://www.jesus-is-savior.com/False%20Religions/false_religions.htm

[R Rosskopf]

I don't know if anyone knowingly worships Satan; mostly people just love sin. Satan works to increase that love.
He teaches that God is unfair, therefore there is no God. If there is a God, then God is insubstantial and mute, and will not answer prayers or speak to modern prophets. If he does speak to prophets, then we don't have to obey them or keep his commandments; that by acknowledgement of Christ alone we are saved.
Thus Satan works to diminish God, and nullify his teachings. He has had great success in most of the modern churches, who find every exuse not to follow or believe in living prophets. They point to scriptures about false prophets while following men who teach them to worship a mute God. A false prophet is a man who endeavors to lead mankind by speaking for God, but does so without true authority, and without direct revelation. The world is full of false prophets.
There are also true prophets who have authority given from God, and teach that God is real, and does answer prayers and reveal himself to men. They teach us to keep God's commandments, and worship him in truth and light. God loves his spirit children, and will not forsake them, if they will turn to him, and keep his commandments.

[Paul Hxyz]

Satan is a myth - there is no such thing. The name is a derivation of the Hebrew word for "adversary" - "saatan"... see the similarity? If you don't you need glasses.