Students create a mashup, hiding parts of their friend’s face within another image, and pose the question: What is the greatest fraction of a person’s face that can be revealed before figuring out who it is? What is the smallest fraction that can remain hidden so it is still recognizable? In comparing different mashups, students explore which fractional quantities are larger, smaller or equivalent.
Comparing Fractional Quantities and Equivalent Fractions
Expected Activity Time Hidden Face Challenge (20 minutes)
Intro: Do you ever see faces hidden in objects? In this activity, you will hide your face in an object in two ways: 1) trying to show as much of your face as possible yet still be hidden, and, 2) show as little of your face as possible yet your classmates can still tell it’s you in the picture.
Hidden Face Challenge: Create two images, one in which you are trying to show as much of your face without being recognizable to the class, and another where you are trying to show as little of your face as possible while still being recognizable.
What To Do
Hidden Face Challenge (20 minutes):
Have students open the app, and select “Make A Mashup.” To start, students need to choose two pictures to mash, one of an object and one of themselves.
Prompt students to share the mashups they made and what they had to do to achieve the effects they wanted. Ask students:
Examples of language and discourse to listen for as students engage with Fraction Mash:
Examine what fraction of the whole image their different facial parts are. The faces can be resized by zooming. How does this affect the fractions of each part (eyes, nose, etc.)? Is the eye 1/8 of the face? 1/10? etc.
You must be logged in to post a comment.