Educator Ruth Mork teaches kids about clocks — from sundials to cuckoo clocks to roosters. Ruth Mork introduces clocks of all kinds — sundials, candle clocks, hourglasses, cuckoos, even a rooster! She ...

For more than 100 years, high schools and colleges have relied on the same stalwart tool to measure teaching and learning: the clock. That’s because earning credit toward a diploma or degree typically ...