In response to your question I must say “Yes.” Mormonism, when judged by the teachings of the Bible, is false teaching. This is why they speak of the Book of Mormon as scripture, when only the Bible is the word of God. They are in error about the person and work of Jesus Christ, about how man can be saved, about heaven, about the Trinity, and many other things. I’ve found some articles on Mormonism on some other websites for you to look at for a more thorough discussion of these matters.

http://www.probe.org/docs/mormon1.html 

http://www.probe.org/docs/mormon2.html

http://www.joyfulheart.com/cults/mormon.htm