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These hand signals can prevent distractions in the classroom when the students are working silently. Teaching Standard IV Learning Environment, Element IV.3: teachers manage the learning environment for the effective operation of the classroom.
This app allows you to use your smart phone and scan the bar code on your classroom books and then it inputs all of the info for you on a FREE data base. It allows you to scan out the books and check them in, separate them by reading levels and even put down their location in your room