Given that you haven't specified which subject you are referring to in elementary education; it is incredibly difficult to offer you some examples of thesis titles. If you are writing about a sub branch of a particular subject that you are studying, you can write your thesis about something related to that that interests you. The format of a thesis is generally posing a question and then answering it through the form of an essay.

To write a thesis, you must follow these steps:

• You must first think of your title, which must be well researched and interesting to you. If you're not interested in what you're studying, you're undoubtedly going to get bored of it and not put the correct amount of effort into it. This will result in a poor grade.
• You need to begin your thesis with a title page before jumping into answering your question. Mention all the relevant information that would've been provided by your university lecturers.
• You need to then write the purpose of your thesis and exactly what you wish to achieve from your writing and research. This means that must outline everything that relates to your topic that you will be studying. Be concise though, with no more than one to two paragraphs being used for this part.
• Add yourself a table of contents to look relatively professional and ensure that you link this up with page numbers on the individual pages of your thesis.
• Write your introduction and sum up the main idea of your question and, indeed, its answer. Be brief, however, as you're going to have to stretch this information to an entire document.
• Write your thesis but be sure to conclude thoroughly before finishing. Sum up your arguments and come to a general decision about the answer of your chosen thesis question.