### Learning Objectives

- This is a one day activity. The primary objective is to visualize key abstract concepts such as infinite length lines, rays, and the idea of planes. Additionally, how those interact through intersections.

### Guiding Ideas

Through this explorative building activity, students can begin to answer the following questions:

How can a line intersect a plane? How can two lines intersect? What does it mean to have opposite rays? How is a line different than a segment? How does an endpoint "lock" down the location of a shape?

### Student Activities

This is a one day activity for older students and possibly a two day activity for younger. It can be completed alone or with a partner. Students will walk through a series of challenges and will take screen shots of each completed task.

The activities scaffold in difficulty.

### Performance Expectations

As this is a pretty structured world, you only need to worry about:

Time - set a time limit of approximately 60 minutes and/or up to two days. You can differentiate by allowing students to complete less of the tasks or set a minimum amount.

Product - Students should take picture(s) of their finished project. You may ask them to take multiple pictures from different angles.

Quality - You may grade as right/wrong or depending on the age, you may want to develop a rubric for some of the more challenging activities provided. Please note that the idea of a ray and line is abstract. You may want to explain that a giant arrow at the end of a line of blocks isn't what was desired. Ideally, the students will extend the blocks far enough where it disappears from sight.