Teachers need tools and assessments that will prepare students to meet the ambitious goals laid out by the Common Core State Standards. The multiple-choice tests that dominate in history will not prepare students to analyze primary and secondary sources, cite textual evidence to support arguments, consider the influence of an author's perspective, corroborate different sources, or develop written historical arguments. The Stanford History Education Group has created a series of assessments, History Assessments of Thinking, known as HATs, that address this issue and are freely available on a new website (beyondthebubble.stanford.edu).