This, the middle size of Time Timer available, is the most popular as it is great on a desk, for one-on-one use, yet still large enough for a classroom.
Time Timers are designed to help children clearly visualise a set amount of time and helpthem understand, "how much longer". No other teaching aid reinforces the concept of elapsed time like the teacher-tested Time Timer.
You simply spin the button to the required length of time (up to one hour) - the photo depicts 40 minutes - and turn it on. The clocks red section will decrease as the minutes expire, and the clock will beep when the time runs out. The disappearing red disk allows students to "see" time without knowing how to "tell" time.
All Time Timers are designed to operate free standing or wall mounted.They are durable, yet lightweight; and require 1 AA battery (which is not included). They help teach the concept of time; train students to time manage and track duration of activities; set time limits (E.G. for time out, or for computer time, or until an event, like dinner).
Dimensions: 20x20cm aprox