This is a collection of 20 problems that I use as problems of the day. These problems review topics that are traditionally taught in the first half of Calculus AB. (limits, finding a derivative, chain rule, derivatives of trig functions, position, velocity, acceleration, related rates, etc.)
You or the students can scan the QR Code on each page to get the answer to that question. Most QR Codes lead to a simple numerical or word answer, but several of them lead to a website that will show the answer in proper mathematical notation.
I have also included an answer key and a record sheet for the students.
If you like this set of problems, be on the look out for further collections to help students continue their review for the AP Exam.