There are informal and formal assessments to monitor an individual's comprehension ability and use of comprehension strategies. Informal assessments are generally through observation and the use of tools, like story boards, word sorts, and interactive writing. Many teachers use Formative assessments to determine if a student has mastered content of the lesson. Formative assessments can be verbal as in a Think-Pair-Share or Partner Share. Formative Assessments can also be Ticket out the door or digital summarizers. Formal assessments are district or state assessments that evaluates all students on important skills and concepts. Summative assessments are typically assessments given at the end of a unit to measure a student's learning.