Mark-My-Time Digital Bookmark
© 2005 Mark-My-Time, LLC
This digital bookmark contains an LCD clock and timer (powered by button cell batteries) that can either count up or down, in units of minutes. When counting down, a very faint beeping occurs when the timer gets to zero. A start/stop button can be used so that minutes can be accumulated over a period of days or weeks, making it ideal for adding up the total number of minutes a child reads. Note that because seconds are not displayed, it isn't always clear when the thing is timing, other than the two small blinking dots between the minutes and hours. But once you figure it out, it is easy to use and very functional. The timer comes in three colors (blue, purple and green). Considering the price, its hard to go wrong with this bookmark. Besides, after the batteries die you can still use it as a bookmark.
$9, Smart Toy
Teaches: temporal relations
CTR Rating: 90%