Watterson, Bill. "Measurement Homework." Retrieved from http://www.bakadesuyo.com/2014/03/how-to-make-your-kids-smarter/ |
This week we are working on teaching
measurement, which is usually a relatively brief, albeit important unit.
Regardless of grade, measurement is a unit that allows students to be hands on
with their learning, using actual measurement tools to record and analyze real
world things. I am thankful in Canada we use the metric system rather than the
imperial system that the Americans use because honestly, I think the metric
system is much tidier and easier to memorize in terms of converting between
different units e.g. centimetres to metres.
In the textbook Making Math Meaningful, Small uses a standard formula for
introducing different measurement concepts to students. There are three phases
involved: definition/comparison, nonstandard units, and standard units. With
definition/comparison, students simply identify what concept they would be
measuring and then become able to recognize how different items can be bigger
or smaller than others in terms of measurement. Using capacity as our exemplar,
students will learn that capacity is the maximum amount something can contain.
Showing them two differently sized buckets filled with sand, they should be
able to see that these two objects probably have different capacities.
The
next phase would be measuring with nonstandard units. Students use a little
scoop to put the sand in the bucket, noting that it takes 10 scoops to fill the
bucket. This stage seems like one that with most students you could move on
from fairly quickly into standard units because if your students can understand
the bucket’s capacity is 10 scoops, it shouldn’t be that much harder to make
the jump that the bucket’s capacity is 500 mL. You can apply this strategy no
matter what the unit of measurement is, although as I mentioned before,
depending on the class, I don’t think it’s necessary to linger on phase one and
two.
Measurement
can be incorporated/combined with different subjects because many fields of
study measure things in some way. For example, something we did in class today
that was very fun was measuring distance of a standing long jump. Group members
had to estimate how far they would jump and then prove their worth by making
the leap. This is a very common measurement activity in physical education, as
many times teachers have students record their process throughout the year,
noting how many push ups or laps they can do at the start of the year and
recording changes in progress periodically. As touched on earlier, students can
have a lot of fun with these sorts of activities. It give students a welcome
break from simply sitting and answering questions from the textbook, although
there is a time and place for that as well.
I
did my final learning activity presentation today. It was a hard one to make
because I had to go with my Plan B option when I realized my Plan A idea really
wouldn’t work that well with the unit. I had been reading some Lewis Carroll
and came across a word problem I wanted to use. I thought students would find
it interesting to do a math problem made by the author of Alice’s Adventures in Wonderland. However, I realized that although
the problem in question dealt with elapsed time and calculating distance, it
really was more a question about rates than about measurement. Instead I made a
word problem based on the show Adventure
Time! I don’t think many people got the references, but then again, my
audience was not a classroom of 8 and 9-year-olds (otherwise their enthusiasm
and knowledge for the show would’ve been much higher). But I suppose that’s one
of those inevitable things as a teacher. Sometimes you’ll want to do something
and it won’t quite fit, so you have to use your Plan B (or C, D, etc.).
No comments:
Post a Comment