Which of the following assessments would typically involve no grading of students?

The choice of informal assessments is correct because these types of assessments are primarily used to gather information about a student's understanding or skills without assigning formal grades. Informal assessments can include observations, discussions, or simple checklists that help educators gauge where students are in their learning process. The focus is on feedback and adjusting instruction rather than on producing a graded outcome.

In contrast, standardized testing is typically structured and designed to measure performance against a set standard, often leading to graded results. Norm-referenced assessments compare a student's performance to a norm group, resulting in scores that are often used for grading purposes. Formative assessments, while assessing student progress in an ongoing manner, may still involve some level of grading or scoring to inform both the teacher and the student about understanding and areas needing improvement. Therefore, informal assessments stand out as the option that typically involves no formal grading.