Who Can See Who?

The Who Can See Who? Concept Builder leads learmers to an understanding of how an image is seen in a mirror and which images can be seen by a person positioned at a specific location. Learners are presented with a plane mirror, five objects, and an eye position. They must first identify the location of all five images. Then they must determine which image can be seen. The Concept Builder includes 36 questions organized into 12 different Question Groups and spread across three different difficulty levels. The difficulty levels differ in terms of the number of required questions. One question is not intended to be any more difficult than another. Question-specific help is provided for each of the questions. Use of this Concept Builder with our Task Tracker system allows teachers to track student progress.

Launch Concept Builder

Users are encouraged to open the Concept Builder and explore. There is no need for an activity sheet for this Concept Builder. However, the 12 different groups of questions can be printed. View Questions (For Teachers Only).

Learners and Instructors may also be interested in viewing the accompanying Notes page. Technical information, teaching suggestions, and related resources that complement this Concept Builder are provided on the Notes page. View Notes.

And finally, we now offer a short (~2-minute video) tailored to this Concept Builder: