The students and I have just wrapped up a quick study of using analogue and digital clocks to tell time. Most students had a pretty good recollection of how to tell time, but I noticed there was one thing that seemed to puzzle them - the hour hand! During our diagnostic assessment, many children became confused when the hour hand was hovering between two numbers. When it came time for them to draw their own clock hands, their hour hands were always directly in line with one of the numbers on the clock face. It was 'time' for a problem! Students were given the problem of Mrs. Reicker and her broken clock (see picture). The plan was for them to become curious about why the hour hand does what it does, and hopefully lead them to the realization that this little hand can actually give them a more accurate sense of what time it is on first glance. Check out the pictures of student work, and a short clip of our math conversation after we investigated this problem. (**Please note: while this appears on our page as a Youtube video, it is protected from public viewing on the Youtube site, and can only be accessed through our webpage)
The students and I have just wrapped up a quick study of using analogue and digital clocks to tell time. Most students had a pretty good recollection of how to tell time, but I noticed there was one thing that seemed to puzzle them - the hour hand! During our diagnostic assessment, many children became confused when the hour hand was hovering between two numbers. When it came time for them to draw their own clock hands, their hour hands were always directly in line with one of the numbers on the clock face. It was 'time' for a problem! Students were given the problem of Mrs. Reicker and her broken clock (see picture). The plan was for them to become curious about why the hour hand does what it does, and hopefully lead them to the realization that this little hand can actually give them a more accurate sense of what time it is on first glance. Check out the pictures of student work, and a short clip of our math conversation after we investigated this problem. (**Please note: while this appears on our page as a Youtube video, it is protected from public viewing on the Youtube site, and can only be accessed through our webpage)
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May 2012
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