I love the Making Claims Worksheets. In my school district, the History department spends a lot of time teaching students to write 5 paragraph essays and work on their writing skills. The first area I always address is writing a thesis statement, which can challenge my students. The Making Claims worksheet allows me to start with making claims that are thesis statements, but for some reason, the verbiage for my student is less intimidating. If you haven't used the worksheet yet, I recommend it. Here is a link to the World War I Making Claims worksheet.