The subject of this paper is my experience with teaching elementary school children”
Is this a weak or strong thesis statement how can you make it stronger or improve it? what makes it weak?
It is NOT a thesis statement at all!
Your thesis statement must include factual information plus your position/opinion/stance. Without your position on the topic, it isn't a true thesis statement. So think of this sentence as the angle you want to take on the topic and what you intend to prove by the end of your paper. (If your statement is simply factual, then there's nothing to prove!)
Study the non-thesis-statements here ... but most of all study how each one was turned into a real thesis statement. Then start over.
http://leo.stcloudstate.edu/acadwrite/thesistatement.html