Learners calculate the pixel density of a specific cell phone using the concept of similarity. They use information from the cell phone's website to make their calculations and then compare their results to the posted information.

Transmit sound with an electromagnet. Class members follow the provided direction and build an electromagnet that will transmit sound though a cassette-tape player. As as extension they create an air core electromagnet and...

Walk through the steps involved to create a thin, flat iOS 7- inspired design concept for a user profile app screen. By using these simple techniques create stunning, minimal app interfaces.

Can you hear a magnet? In this activity you will be able to transfer the sound from your iPhone, iPod or radio to a cassette-tape player.