Teachers can use iPads and presentation apps such as Explain Everything or Keynote in their math classrooms to encourage students to apply mathematical concepts to real world examples. By creating presentations on their iPads, as shown in this activity (in which students construct mathematical proofs), students play the role of teacher, explaining what they have learned through their own research into math and its application in the real world.

 Submitted by Dr. Randy Yerrick, professor of science education, State University of New York at Buffalo Grade level 8th- to 12th-grade math Objectives Have students demonstrate knowledge of mathematical proofs. Apps/tools Keynote, Explain Everything app Materials needed n/a

Following a lesson where math teachers demonstrate the construction of an algebraic or geometric proof, students are given the opportunity to create their own. Using media-based presentations and audio recordings of their own voices, students create and share a narrated slide-show presentation.

Keynote is Apple’s presentation app that enables students to build a slide-based presentation with text and media, which they then present live in front of an audience.

The Explain Everything app enables students to build and record a series of narrated slides with picture, text, and media content that explains and demonstrates a concept to an audience. Essentially, once students put the slides in the order they choose, they tap Record and step through their slides, explaining, highlighting with color, and accentuating with the laser pointer feature.

The Record function also enables students to pause or to rerecord their presentation so that they can practice before presenting it to the class.

Explain Everything also includes members’ libraries and upload links to such social media sharing sites as Dropbox and Facebook, making student sharing of work easy and manageable.

Students can be given the option of using the preceding apps to explain some of the data that can be retrieved from scientific agencies such as the U.S. Geological Survey (USGS), National Aeronautics and Space Administration (NASA), and the National Oceanic and Atmospheric Administration (NOAA).

For example, students might use the latitude and longitude of approaching hurricanes to learn Cartesian coordinates and plot them. Another student might provide an explanation of the calculated arrival time of a tsunami across the Pacific Ocean from an image acquired from the USGS.

If you like, you can have students use apps such as GarageBand or iMovie to collate specific photos they gather into a podcast or movie and explain what they know or how they apply mathematical concepts to examples in the real world.