My
motivation to conduct a study of the TurningPoint Student Response System was to
see whether, given appropriate use, the Keypads might improve feedback both to
me, and to students, on their progress.
In particular, to
apply the technology as a mechanism for incorporating contemporary instructional
strategies, while also reinforcing an underlying constructivist approach.
The goal was to allow for more student-centred, student-directed
lessons, to provide much more instant feedback to students.
Two
classes were selected for the study: • A top, very
able Year 9 class • A bottom Year 7 class where many
of the students have learning difficulties.
Keypads were generally
used for four to six questions per lesson both at the start of a topic; to
assess initial student topic knowledge, and to allow student input for the
sequence of topics; and during the topic as formative assessment to analyse and
inform student learning and gauge the relative effectiveness of various
strategies. The Keypad assessment process also proved to be useful during
lessons as a literacy tool to develop scientific language and clarify areas of
misconception.
The Keypads were also used to gauge student reaction
to their own learning, and their response to the use of Keypads.
The
Keypads were not used directly as a tool for summative assessment, instead the
school assessment program, involving pen and paper tests, filled this role.
Typically, a Keypad question is one where I know from experience there are
several common misconceptions.
For example the following question
was asked after lessons on Newton’s laws of motion: A boy is just
able to push a heavy box at a steady speed across a flat concrete floor.
Considering the boy applies the force as shown (see insert), which of the
following statements is correct? 1 The boy is applying a
force just larger than the friction which acts on the box. 2 The boy is applying a force equal to the friction which
acts on the box. 3 The boy is applying a larger force to
the box than it applies to him. 4 The force the boy
applies is just large enough to accelerate the box across the floor. The
poll results were discussed in order to:
1
Highlight the need to be careful when reading a question to ensure that they
noted all the important detail provided within the question, (exam
technique). 2 Highlight Newton’s laws to
demonstrate how easily questions can be answered when time is taken to consider
the physics involved.
The following discussion of the alternative
answers is typical.
Answer 1 Is one of the
most frequently chosen answers when not thought through by the student, or
carelessly read. It is true to start the box moving the force must be greater
than the friction but the question clearly states that the boy is already
pushing the box at a steady speed, i.e. a constant velocity because the floor is
flat (horizontal).
Answer 2 Is the correct
answer as the situation described by the questions perfectly demonstrates
Newton’s first law, i.e. the forces must be balanced because the box is
moving across the flat floor at a constant speed, therefore friction equals
applied force.
Answer 3 Cannot be correct
because Newton’s third law says that there is always an equal reaction
force to any applied force.
Answer 4 Makes no
sense at all considering we are told the box moves a steady speed and, as such,
it is not accelerating (changing velocity).
The ability to
immediately discuss the reasons for the mistakes was noted as being very useful
for a large number of the students.
Overall the response from nearly
all students was very positive with a noted increase in individual participation
and focus during lessons. The younger boys seemed to really enjoy using the
Keypads and often the first thing said on arrival at class was “Are we
using Keypads today?”
It was found that the anonymity the
system provides was of real benefit in class and resulted in increased comfort
levels in participation. The ability to discuss the reasons for their wrong
choices and provide instant feedback was also considered of great benefit.
The ability to set up the Keypads so the responses from each student
could be monitored, provided me with much information on the individual
student’s progress, clearly showing when the outcomes had been achieved,
when particular students needed extra help, or when features of my own
explanation and methods could be improved.
In conclusion the Keypad
technology is well received by the students and has the potential to be an asset
within the modern classroom.
The ability to provide instant feedback
to students, combined with the ability to later analyse detail of individual
student responses, is of great benefit in allowing the teacher to monitor
progress and to take appropriate steps as needed. This can save a lot of time
and, with careful preparation of the questions and the alternatives offered, can
provide insight into the individual strengths and weaknesses within the
class.
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