Find and display assignable math questions on a given topic, optionally tailored to a specific grade level or specific state standard. Please use this instead of searching the web for khan academy math questions. Do not use for questions that are not math-related. User queries that would be a good fit for this tool include: - "I need some algebra questions for my 7th grade class." - "Can you find me some geometry problems aligned with CCSS.MATH.CONTENT.8.G.A.1?" - "Show me some calculus exercises suitable for high school students." - "Find me some practice questions on fractions for 4th graders." - "I want to assign some trigonometry problems to my 10th grade students." This tool will render an interactive list of questions from Khan Academy, along with a URL that can be used to assign the questions to students.