Final answer:
The best example of an informal assessment among the options given is C. An exit ticket completed at the end of a lesson.
Step-by-step explanation:
Exit tickets are a form of formative assessment that rapidly gauge students’ understanding at the end of an instructional period. Unlike formal assessments such as standardized tests, which have a more rigid structure and are used for summative evaluation, exit tickets are informal, often consisting of a question or two for students to answer in order to reflect on what they have learned.
Informal assessments like exit tickets are valuable because they provide immediate feedback and are less pressured than traditional quizzes or tests. They allow educators to confirm core conceptual understanding, and elicit brief explanations that demonstrate student comprehension in real-time. By assessing knowledge in this relaxed manner, teachers can adjust instruction accordingly to better meet the needs of their students.