The first three references pertain to my immediate biology scholars project. The last three are on a related topic of how to measure critical thinking, a topic I hope to pursue in the future.
1.Clerk, D and Rutherford, M (2000). Language as
a Confounding Variable in the Diagnosis of Misconceptions. International Journal
of Science Education 22(7): 703-717.
This
article asserts that the labeling of student ideas as misconceptions is often incorrect,
and that instead, students pick particular multiple choice answers because of
language inaccuracies in how the question is written, or a misunderstanding of
particular terms.The authors chose
multiple choice questions on Newtonian mechanics from published physics papers
that had been used to supposedly reveal student misconceptions.They tested 48 students and conducted
detailed interviews with 9 of these students.Their main conclusion was that language usage frequently prevented
students from answering questions correctly, resulting in “false positives”,
where just by looking at students’ answers, one might conclude that a
misconception was held.When students
explained their reasoning, however, they often did not have the
misconception.This paper was
particularly interesting to me because I’m in the middle of writing a paper
with my colleagues Michelle Smith and Bill Wood on a Genetics Assessment Tool
designed to measure conceptual understanding of genetics.We have conducted many interviews, and used
student’s ideas to write the distracters. I’m now using common student choices
from this assessment to pick out what might be shared and persistent
“misconceptions” (perhaps I should use the word “incorrect ideas”?) between
majors and non-majors. This paper reminded me that I need to be sure students
are not being confounded by language.
2.Lewis,
J and Wood-Robinson, C (2000).Genes,
Chromosomes, Cell Division and Inheritance—Do Students See Any
Relationship?International Journal of
Science Education 22(2): 177-195.
| In
this paper, the authors discuss students’ incorrect ideas about
genetics, particularly their inability to connect cells, properties of
cells, division, inheritance, genes and chromosomes together into a big
picture.The topics they interviewed students on are exactly the topics
that I have found to be challenging for students entering college
genetics courses (non majors and majors).The authors are from the UK
and South Africa, and they do not make explicit whether the students in
the study are from both countries.They administered a written test to
482 students (aged 14-16) who were “nearing the end of their compulsory
education”, which includes instruction on genetics and cell
biology.They then conducted focus group interviews of 3-4 students
each.The written test included interpreting drawings, making drawings
(of chromosomal content, for example), as well as identifying commonly
used terms such as genes, DNA, alleles, and chromosomes.In the focus
group interviews, the students were asked to describe the reasoning
behind their answers.The paper contains many wonderful student quotes,
as well as summaries of numbers/percents of students who, for example,
could not distinguish between meiosis and mitosis (68%), and thought
that the genetic content of each cell was different (80%).I will
definitely use the themes described in my analysis of what college
students continue to not understand in genetics. 3.Modell,
H, Michael, J, and Wenderoth, MP (2005). The Role of Uncovering
Misconceptions. The American Biology Teacher 67(1): 20-26.(Thanks Mary
Pat!) This
paper focuses on the value of uncovering student misconceptions—ie, we
know students have these problems, sometimes even after direct
instruction on a topic, so why is it useful to know what they
are?Uncovering the misconception allows the instructor to chart a
course for the learners to change their mental models.The paper gives
several examples of common misconceptions in physiology, and
suggestions on how to proceed with helping the student figure out a
new/correct model.For me the main value of this paper was the reminder
that diagnosing the problem with a student’s mental model is critical
in designing activities or other exercises that might induce a student
to change their model (emphasis on *student*, since the student must do
the changing!). | |
| 4.Quitadamo,
IJ and Kurtz, MJ (2007).Learning to Improve: Using Writing to Increase
Critical Thinking Performance in General Education Biology.CBE-Life
Sciences Education 6: 140-154. | |
This
paper addressed whether structured group writing assignments as part of a
laboratory course could improve the ability of general education students to
think critically.The study was well
controlled—there were 10 sections of students, all of whom used the same
textbook and had the same essential lecture and lab format over a 9 week period
(they did, however, have different instructors).In 4 of the sections, the students spent part
of their lab time (1 hour per week) writing answers in groups of 3-4 to
difficult questions on the material they had been studying in the course and lab.In the other 6 sections, the students were
quizzed on their understanding of the same materials, and spent more time on
the actual lab work itself (2 hours compared to 1 hour).The paper discusses how the writing
assignments were designed and graded, and shows that students improved over
time in their writing skills. To measure critical thinking skills, students
were given the California Critical Thinking Skills Test (CCTST) at the
beginning and end of the course.Their
main conclusion was that students in the writing sections significantly
outperformed students in the non writing sections on all aspects of the CCTST.Interestingly, students who started with a
higher score on the CCTST improved the most.I’d like to find out more about this test (only a few examples of the
questions are given on the website for the test).The pros are that it is a validated
instrument, and so can serve as a non content-related measure of critical
thinking.On the other hand, a
science-based critical thinking assessment might be more useful.
5. Minderhout,
V and Loertscher, J, (2007).Lecture-free Biochemistry. Biochemistry and Molecular Biology Education
35(3):172-180.
The
authors describe the format and success of a biochemistry course taught
at
Seattle University, where they have been using lecture free techniques
to teach
biology for more than 10 years.The
courses are small (less than 40 students), and have learning goals that
address
more than just content knowledge (for example, students should be able
to
analyze and interpret data and improve problem solving skills).The
course revolves around POGIL activities.POGIL, Process oriented guided
inquiry
learning, is an NSF funded project that began in chemistry (The POGIL
website: http://www.pogil.org/).POGIL emphasizes group work and critical
thinking, and although the students are guided toward content understanding,
the process of getting there has value.[Some
of the resources available on the POGIL site that others might find interesting
can be found primarily under the Resources tab; for example a guide on writing
and designing POGIL activities, and how to assess the effects of POGIL on your
students (under “assessment handbook”)]. The authors report that more students in the
POGIL classes receive grades of A,B,or C than in standard lecture classes.They also report student perceptions of this
interactive course, using the SALG (Student assessment of Learning Gains)
survey.Although some students still
reject this technique, requesting more lecture time, most students self-report
high understanding of biochemistry material as well as a gain in problem
solving confidence. I already use some
elements of POGIL in the activities I have designed both to teach genetics and
developmental biology.I am considering
using more of the POGIL approach for the design of in-class activities to
address both my research questions.
6. Blue,
J, Tayor,B, Yarrison-Rice, J (2008). Full-Cycle Assessment of Critical Thinking
in an Ethics and Science course.International Journal for the Scholarship of Teaching and Learning 2
(1): 1-23.
This
article reviews a definition of critical thinking, as well as several
assessments and recent studies in which critical thinking levels and changes
have been measured.Their study used a
critical thinking rubric developed at The Center for Teaching, Learning and
Technology at Washington State (http://wsuctproject.wsu.edu)
to measure change in students’ critical thinking skills over a semester-long
class in ethics and science, in three successive years.A dozen faculty members at Miami University
served as Assessment Fellows, whose goals were to create a definition of
critical thinking, develop a means of assessing critical thinking, and then
assist faculty in this assessment.The
fellows agreed on a rubric that addressed seven primary traits of being able to
think critically, ranking students on a scale of 1-4 on such items as being
able to identify a problem, identify one’s own and others perspectives on the
issue, use evidence to draw conclusions, etc.Students’ papers on case studies were evaluated over the course of the
semester.Overall, students showed the
most improvement from their 1st to 2nd assignments, but
little improvement from the midterm to the end of the semester.Students show surprisingly little improvement
overall.When students had access to the
actual rubric, and when they knew they were supposed to be “thinking
critically”, they showed more improvement.The authors found their results encouraging, suggesting that even a
modest improvement is significant.They
also suggest that the instructor has to be skilled in using a series of
pedagogical techniques to aid the students in their critical thinking
growth.I am interested in studying the rubric they
used to assess critical thinking to see if it might be something I can modify
for my courses.