Please provide guidance on a thesis statement for an essay title "Lies my teacher told me".
The premise of your position is questionable and will, therefore, result in a challenging thesis. The theme and title of your work should reflect an academic, balanced and respectful approach to the topic. You may be able to argue some of the information provided during educational courses is not the only accepted explanation but categorizing them as lies is a tall order. Using the phrase "lies my teacher told me" would seem juvenile and would lessen the impact of the work, regardless of the quality or factual nature, unless you are basing your essay on sociologist James W. Loewen's 1995 book of the same title: Lies My Teacher Told Me: Everything Your American History Textbook Got Wrong.
A thesis is nothing more than a succinct way of stating your position and providing several broad defenses. I suggest any thesis should have at least two, but preferably three defenses. The thesis should be one or two sentences in length and included in your introductory paragraph.
Following your premise, that your teacher lied to you, there are several ways to develop your thesis. You can directly challenge one teacher or textbook, or perhaps a more useful approach would be to challenge the conventional teachings of the educational community. Please, note that just because you believe an alternate explanation for an event does not mean the counter is a lie.
Your premise should look something like the following: The educational system has provided inaccurate information on the infamous escape from Alcatraz, evolution, and the first American Thanksgiving. You can include your own references or topics on which you believe your teacher lied to you. The benefit of using the position and defense form of a thesis is that you build in your topic headings for later in the paper. Using the hypothetically presented thesis above, you will have a section on Alcatraz, evolution, and Thanksgiving explaining how or why your teacher lied about each.