Photomath

From their website, "Photomath is a mobile application described as a "camera calculator", which utilizes a phone's camera to recognize mathematical patterns and to display the solution directly onscreen. It is available for free on Google Android and iOS"

I have utilized this app on my phone and it works well with typed questions and even on my hand written questions.  Not only will it show you a solution but will show you the steps used to get the solution algebraically and graphically.  This works from basic arithmetic through trigonometry and Calculus.  To see the webpage click here.  The downloads can be found for iOS by clicking here  and for Android by clicking here. 

System of Equations and shooting hoops

 Andrew Stadel posted a nice little pdf that you could use to introduce systems of equations.

This picture can be found by clicking here.

This picture can be found by clicking here.

 Maybe you might have your students go to the gym and shoot some baskets in pairs and record the number they make from the free-throw line and from the field (or field vs 3 pt line) and then they can present their data to the class and have other students solve the equations.