As a 21st century educator, you should use every tool at your disposal. The one that is always in my pocket is my iPhone, as is the case with many of you readers. The line between a home-use device and a school-use device is blurred, as cost-sharing programs are becoming the norm. School boards and districts might not always provide you with the tech you want to use. With that in mind, a strong durable case becomes a must for protecting an expensive investment. Using a personal iPhone in the class should not be an issue with most teachers, but having solid protection is an important priority.