Is it Linear?
Is it a Direct Variation?
Is It Parallel?
Is It Perpendicular?
These four "What Is It?" assessments can be integrated seamlessly during your linear functions unit. Each task begins with one of the above questions and includes 9 squares. Students must carefully examine the contents of each of the 9 squares and take a stance.
For example, on "Is It Linear?" Students examine each table, set of ordered pairs, or function represented in the 9 squares, and must decide whether or not it represents a linear relationship. Students write an "x" in each box that represents a linear relationship. The other 3 tasks/topics included in this bundle are structured in a similar fashion.
I'd recommend allowing students to try each of these independently initially. Then, chatting with a partner or small group would help students justify their choices. These are great conversation starters for early algebra students. Listening to students reason through them is the best part!
Consider using these as warm-ups, or as math centers to review!