Time to Read is an activity that combines healthy reading habits with mathematics! In fact, each student gets a cool bookmark in which (s)he notes down the amount of time (s)he has spent reading each day. At the end of the week, students calculate the total amount of time spent reading during the week. This activity is great for practicing mental math, especially since these are the kind of mental calculations kids will have to do regularly when they grow up. For ease of use, the instructions and the bookmark are printable.