Protractor (Angle Meter)—Tool to measure degrees and radians for iPhone, iPod touch, and iPad (supports iPad mini and retina display)

[asa_item id="631311541"] Protractor is designed to measure an angle's degrees. With Protractor, users align the vertex with each ray that forms the angle. Once aligned, Protractor displays the interior and exterior degrees of the angle to the tenth decimal place. Instructional Ideas Teachers can have students create different degrees of angles with this app to build their familiarity of how a protractor functions. Students can draw different angles on a piece of paper and then cut out each angle. Next, students can measure the degree of the angles by placing them on their iPad’s screen, matching the vertices together, and…

Review Overview

A. Instruction - 4.8
B. Design - 9
C. Engagement - 7.3

7

Protractor: A Best App for the Math Classroom

Summary : A digital protractor at your fingertips

[asa_item id=”631311541″]

Protractor is designed to measure an angle’s degrees. With Protractor, users align the vertex with each ray that forms the angle. Once aligned, Protractor displays the interior and exterior degrees of the angle to the tenth decimal place.

Instructional Ideas

  1. Teachers can have students create different degrees of angles with this app to build their familiarity of how a protractor functions.
  2. Students can draw different angles on a piece of paper and then cut out each angle. Next, students can measure the degree of the angles by placing them on their iPad’s screen, matching the vertices together, and matching the rays together. Finally, with this app, students would be able to measure the degree of the different angles.
  3. To review angle types, teachers could have all their students in a class launch this app. Next, teachers could say the name of a type of angle (e.g., acute, obtuse, right, straight, etc.) and students would have to create that angle on their iPad using this app. While students are creating their angles, teachers could walk around the room and check their students’ work.
A1. Rigor
A2. 21st Century Skills
A3. Conn. to Future Learning
A4. Value of Errors
A5. Feedback to Teacher
A6. Level of Material
A7. Cooperative Learning
A8. Accom. of Individual Diff.
B1. Ability to Save Progress
B2. Platform Integration
B3. Screen Design
B4. Ease of Use
B5. Navigation
B6. Goal Orientation
B7. Information Presentation
B8. Media Integration
B9. Cultural Sensitivity
C1. Learner Control
C2. Interactivity
C3. Pace
C4. Flexibility
C5. Interest
C6. Aesthetics
C7. Utility

Screenshots

  • ‎Protractor+ Screenshot
  • ‎Protractor+ Screenshot
  • ‎Protractor+ Screenshot
  • ‎Protractor+ Screenshot