Heya!
Was reading the formula for the thesis part, and thought I'd give my opinion on using one.
While a lot of maths inclined students tend to work better by using formulas in English, it is usually advised against, simply because there is no set method or way to write a good essay/thesis. It is all about practice, hard work, consistency and a passion for your texts (and yes, you can fake this for your essay).
Markers will almost always realise when you're using a formula to write your essays, and after they read SO many essays with the same type of formula, they get bored and tend to mark the generic responses down. That is why having a personal voice (or a personal opinion) for your texts and the question will result in a higher mark. Markers look for unique opinions that not many students would've thought about. As the thesis is the first glimpse of your personal voice, it is important you use it to 'hook' the markers in to enjoy your writing, which will result in better marks.
When writing your thesis, it is important to include your opinion and a few words from the necessary part of the syllabus as it helps the markers understand that you know your content, and aren't just memorising essays and hoping for the best. I disagree with repeating the question in your thesis, the thesis should be the answer to your essay question, it is the core of your argument and the sole reason for writing the essay. Thus, I think the question is less necessary to repeat in your thesis. I definitely agree with the having two parts of your thesis. The first part should be a sentence and should express the core notions of your idea, the second part should bring in your text(s) and where your core idea is seen in your text(s) [i.e. your evidence].
So sorry for the mini essay, but feel free to post your practice thesis' in the "Marking and Feedback" section of the forums!
Hope this helped!
meerae