Well,
we are nearing the end of the second trimester.
Exams are next Thursday and Friday, and while the students have made an
incredible amount of progress in their problem-solving skills (most especially
in their perseverance), there is still one area in particular in which the
students are still struggling. In
writing the worksheets for the course, the way we handled the more difficult
topics was to spread out what would be considered one exercise over several
worksheets. For example, during the past
week we covered rotation of conics and polar equations of conics. So, on successive worksheets, I had the
students do the following:
In
the exercises of these same worksheets, we were building the general polar
equation for a conic in a similar way, so that exercise #7 on worksheet #29
should have brought everything together.
However, almost without exception, the students looked at this exercise
as brand new, and tried to complete the square on it. Little to no connection was made with the
exercises from the worksheets that immediately preceded it. And this is not the first time something like
this has happened.
Now,
in all fairness, they have successfully made similar connections in the
past. But for me, that just adds to my
confusion: having made similar connections between worksheets in the past, why
are the students not actively looking to make these kinds of connections all
the time? As mathematics educators we
constantly stress the fact that from day to day and from year to year, the
material in our classes builds upon itself to the point that it is necessary to
essentially remember everything.
However, do we really hold the students accountable to that
standard? Or do we instead only teach
one section at a time or one chapter at a time, and thereby inadvertently teach
the students that each topic in mathematics stands in isolation? It has been a real struggle for me this year
to understand just how little the students even go looking for these
connections. These are the honors
students, they are in pre-calculus, and yet somewhere along the way during the
past 11 years of school, they haven’t realized (or haven’t been shown) that all
of this math stuff is interrelated. No
wonder when they get to calculus they struggle, not so much with the calculus
itself, but with the algebra from the courses that preceded it.
More
disturbing to me is this: why am I only now realizing that the students are
struggling with this? How have I taught
this course for so long (10+ years now) and not seen that the students are not
making these connections? In many ways I
believe it is because prior to this year, I fell into the trap of treating the
topics in isolation, working through a textbook section by section and chapter
by chapter, focusing only on the current material. Another possibility is that I made the
connections for the students during the course of my lectures, so they didn’t
have to put the pieces together the way they are required to this year.
Whatever
the case may be, the only possible answer to why I am only now seeing this is
that this year I’m running a Harkness classroom. I concluded a long time ago that I have a
better feel for each of the students as individuals this year than I ever have
in the past. Day by day, I have a better
feel for where they currently are with the material, a better grasp of where
they are struggling, and the reason for this is the individual accountability
that Harkness brings to the classroom.
There is nowhere for the students to hide during the discussions, and I
am more actively involved with them during the discussions. The amount and level of informal assessment
that happens every day in my classroom has increased more than I can possibly
relate to you, and perhaps this is why this year I am more aware of the struggle
students have with making connections than I have been in the past. Regardless, as we wrap up this trimester, and
more importantly as we begin the next, I am now aware that I need to
specifically focus the students on making connection, not only from worksheet
to worksheet, but from unit to unit and with the courses that preceded honors
pre-calculus. Of course, all I will do
is persistently mention that they should be looking for the connections; I won’t
actually make the connections for them.
My hope is that by consistently asking them to be on the lookout for the
connections, they will discover them as they have discovered so much of the
material we have worked through this year.
And who knows, maybe they will make some connections I’ve never
noticed before.