Using Giant Papers and/or white boards provides a way for students to show comprehension through project-based learning
1 Minute Paper
One-minute papers can be used as a pre-test or post-test. Generally, these work best for open-ended questions on the material covered or when asking the students for something they are still struggling with ("muddliest point" assessment).
Worksheets can be used for individual or group work, and allow students to show what they understand from the session.
At the beginning & end of session, one can have students answer a question about the content on an index card. Collect the cards at the end of the session and use responses for assessment.
Concept maps allow one to assess how well students see the big picture, they illustrate students' conceptual knowledge, and can be good for visual learners.