Which of the following best explains the purpose of summative assessment? It is an evaluation administered after instruction to measure student mastery. It is an evaluation administered at the beginning of the school year to help teachers plan instruction. It is a short test of a student's present knowledge of mathematics procedures and concepts. It is a tool used to communicate a student's likely learning outcomes with his or her parents.3. When graphing a student's data, what should a teacher do to indicate when a change of instruction occurs? draw a phase change line on the graph change the color of the data points use a different shape (dots, stars) for the data points change the format of the data line (dotted line, double line)