| Reprinted here with the permission of the Harvard
Education Letter. No further republication or redistribution
is permitted without the written permission of the editor.
Source:
Harvard Education Letter, September/October 1998
- Volume 14 |
 |
From Sputnik to TIMSS: Reforms in Science Education Make Headway Despite Setbacks
More time is needed for widespread classroom changes
By Naomi Frelindich
When final science scores from the Third International Mathematics and Science
Study (TIMSS) tests came out late last year, U.S. students proved to be behind
half of those in other developed countries by the eighth grade, and dead last
by the final year of secondary school. The low scores, though shocking, were
not unexpected: The U.S. has been trying to overhaul science education since
the Russians launched Sputnik in the 1950s, but progress has been slow.
While many new science courses were developed in the 1960s in response to Sputnik,
that period of reform halted shortly after U.S. astronauts landed on the moon,
according to James Rutherford, former director of Project 2061, the American
Association for Advancement of Science’s program for revamping K-12 science
education. With the crisis over, science reform stopped short of producing
a "critical mass" of newly trained teachers. "It wasn’t
rooted in the schools yet, so we went back to the traditional ways of doing
things," says Rutherford.
Worries over whether the U.S. can keep up in the global economy have ushered
in the current period of science education reform, says Rutherford, whose
1990 book, Science for All Americans is considered "the bible"
for these efforts. Unlike the 1960s, though, there is general consensus on
what concepts students should be learning from kindergarten through 12th grade.
But translating those expectations into the classroom remains the central
task. In-depth studies of TIMSS results, combined with case studies of reform
efforts, are shedding even more light on the many changes that are still necessary.
Among them are wider dissemination of newer inquiry-based science materials
and intensive training of teachers in how to use them. "Trying to put
together the pieces is the challenge now," Rutherford says.
Beyond Standards
Although the TIMSS scores don’t reflect it, there have been major national
and statewide efforts to improve science literacy in the schools. Some 46
states have adopted science standards or curriculum frameworks. Many of these
frameworks are based on standards set by the American Association for the
Advancement of Sciences (AAAS) and the National Academy of Sciences. In addition,
about half of all states have instituted state-wide tests in science, just
like those in reading and math.
But standards have proved to be only a starting point—teachers also need
new materials and training to interpret and follow them. In a 1998 analysis
of state standards, the Thomas B. Fordham Foundation gave only six states
top marks for having standards that were sufficiently specific when it came
to content. Since releasing its own "Benchmarks for Science Literacy"
in 1993, the AAAS’s Project 2061 (named for the year that Haley’s
Comet will return) has recently embarked on a series of workshops aimed at
introducing standards to teachers in individual school districts, and is working
on a database to help middle school teachers, in particular, find curriculum
materials to meet them. "That’s the big obstacle," says Mary
Koppal of Project 2061. "People want to use standards and benchmarks,
but they want to know what works."
Ohio
Reform Shows Results
When the National Science Foundation announced its intention to
award millions of dollars in grants for statewide science education
reforms, Jane Butler Kahle, a professor at Ohio’s Miami University
teamed up with physics Nobel laureate Kenneth G. Wilson to come
up with a plan. Their idea was to train middle school teachers
in inquiry-based physics—a "gatekeeper" subject
that students need to take in order to take higher-level science
courses. The goals were to create a more knowledgeable teaching
force and to engage more female and minority students in the subject,
since these students are more likely to opt out of science after
middle school.
What they came up with "was successful beyond anyone’s
expectations" wrote Kahle in a 1997 article for Science
Educator. Dubbed the "Discovery Institute," the
six-week summer program trained teachers in math, life science,
and physics. Taught by master teachers, mathematicians, and scientists
at eight sites throughout Ohio, the institutes stressed teaching
teachers "the way we wanted them to teach," says Kahle.
Teachers received stipends of up to $60 a day and could earn college
credits by attending. Unlike the typical lecture-lab science course,
those taking Discovery's Physics By Inquiry institute learned
by doing. For example, teachers were told to put together light
bulbs, batteries, and strips of aluminum to make the bulbs light
as part of learning about electricity.
To reach even more teachers, a two-week summer workshop for individual
districts was developed to help teachers work through actual curricula
in a way consistent with national science standards. "Teachers
who go through the two-week institutes are very likely to go the
next summer to the six-week institute because we whet their appetite,"
said Kahle. Whereas many programs peak at reaching the 10 percent
of teachers who usually volunteer for reforms, the Discovery Program
reached almost 40 percent of middle school teachers in participating
districts. The initial cost of both the two- and six-week training
was about $25 per hour per participant, but this figure decreased
as the program grew.
To measure the program’s success, Kahle and her colleagues
surveyed teachers, principals, and parents, and visited schools
to gauge changes in teacher practices. They also developed their
own test to see how well students of teachers who did and did
nor participate in Discovery training were able to think conceptually
and interpret data. Results show clearly that students in "reform"
classrooms with teachers who have attended Discovery Institutes
are more likely to write about how they solve problems, to work
in small groups, and to use hands-on materials than those in "non-reform"
classrooms. Results also show that teachers in reform classrooms
use more inquiry-based teaching approaches, which require students
to support their claims, encourage questions, and inspire students
to discuss subjects. These practices remained evident three years
after teachers were trained.
Test scores were not only higher in reform classrooms, but girls
actually outscored boys within their racial groups. African Americans
in reform classrooms scored as well as white students in non-reform
classrooms. Studies like these are done every year, and results
are published and given to stare legislators to boost support
for the program. Ohio has also changed teacher certification criteria
to require "intense experiences with inquiry," says
Kahle.
"We have changed attitudes about what constitutes good professional
development in the state," she says. "That maybe the
long-lasting effect of what we’ve done."
For Further Information
J.B. Sable. “Systemic Reform: Challenges and Changes.”
Science Educator 6, no.1 (Spring 1997): 1-6.
Ohio’s Systemic Initiative: Discovery, 420 MeGuiley Hall,
Miami University, Oxford, OH 45056.1693; 513-529-1686 (evaluation)
or 937.775.2726 (K-12 Programs); www.units.muohio.edu/discovery/. |
Less Is More
Since the 1980s, evidence has been mounting that "hands-on, inquiry-based"
materials recommended by national science standards impact facts just as well
as the traditional lecture approach, with the added bonus of improving student
attitudes toward science, (HEL, May/June 1990).
Assessments like those devised by Ohio researchers (see box)
are also confirming that new inquiry-based approaches can raise scores, even
among girls and minorities, groups that traditionally have not performed well
in science.
Unfortunately, the textbooks that most schools rely on, especially in middle
and high schools, have not been revamped to emphasize these new methods. "Despite
a recognition that Project 2061 and other national reform documents are calling
for reduced content and different approaches to teaching than in the past,
publishers have made only incremental changes, layered on top of existing
textbook formats and content," say the authors of an SRI International
report on Project 2061.
The problem with U.S. science texts is that they take the "mile-wide,
inch-deep" approach, says William H. Schmidt, research coordinator at
Michigan State University’s U.S. TIMSS National Research Center. Schmidt
and his colleagues analyzed 491 curriculum guides and 628 textbooks from around
the world to get a picture of how the U.S. taught math and science as compared
to other countries. Based on their study "A Splintered Vision,"
Schmidt argues that the U.S. did poorly on TIMSS primarily because its science
curriculum attempts too much and is repetitive from year to year. Countries
that did better on TIMSS have more focused curriculum, he says. "If you
look at a [U.S.] 8th-grade science book, it has 65 topics in it," he
says. "The German and Japanese textbooks have five topics in them and
the international average is 20. Science has big theorems, but the way it’s
conveyed to U.S. students is like a large laundry list."
Minnesota’s experience with the TIMSS tests confirms Schmidt’s thesis,
says Bill Linder-Scholer, executive director of SciMathMN, a nonprofit reform
organization that sponsored Minnesota’s participation in the test. Minnesota
students tied with Singapore’s for the best scores on the TIMSS 8th-grade
earth science test, primarily because 95 percent of its 8th-graders take earth
science (as opposed to a mix of science subjects) and because there was "common
agreement" among teachers to focus on only four topics within that subject,
says Linder-Scholer. "We have no magic bullet," he says. The fundamental
lesson is about alignment."
Some new curriculum is being developed to correct this problem. In stark contrast
to the 65 topics found in the 650-page earth science text most commonly used
in middle schools, the National Science Resources Center, for example, is
developing an earth science course that focuses on only three topics taught
entirely with activities and thin "student guides."
Centralized Efforts Work
Despite these pockets of progress, reformers at the National Science Foundation
(NSF) have discovered just how difficult it is to bring about widespread improvement.
Between 1991 and 1993, the NSF signed cooperative agreements with 25 states
to carry out "standards-based systemic reform throughout their jurisdictions."
These Statewide Systemic Initiative (SSI) grants averaged about $10 million,
and there was great latitude in how the state programs could be executed.
States typically contracted to universities or other outside groups to set
up teacher development programs, introduce new curriculum, and try to measure
success.
A study of the SSI program released in March by SRI International concluded
that it "had limited, moderate, and uneven impacts on classroom practice."
The programs that failed often suffered from what program manager Patrick
Shields calls the "let a thousand flowers bloom approach"—giving
money to many local initiatives to do what they want with it. However, centrally
managed programs like Ohio’s (see box) that feature
intensive teacher training did far better. "Programs that were able to
show a real impact on students and teachers were those that started early
were able to provide intensive high-quality professional development, and
used pre-made curriculum materials," said Shields.
Learning by Doing
Teacher training plays an especially important role in science education efforts
for two major reasons: science as a field is constantly buffeted by new discoveries,
and the learning curve is steeper because teachers generally have had little
specialized training in science. The average elementary school teacher has
taken only one college course in science.
Reform efforts focused only on new curriculum without adequate teacher training
appear to be "doomed," say John Cannon and David Crowther of the
University of Nevada. After spending $1 million on a new hands-on, activity-based
curriculum called "Science Place," one large Nevada school district
saw its reforms fail because teachers at its 56 elementary school didn’t
know how to use it, according to a 1997 case study by the two researchers.
Although the publisher provided training for 10 local teachers, who were then
paid to provide workshops for other teachers, only 59 percent of the
district’s teachers attended even a single workshop. Teachers complained
that there was not enough time during the year to complete the units or to
work out problems. Without continued training for teachers using "Science
Place" and incentives for teachers to attend workshops, the reform was
"doomed from the beginning to trip and fall," the authors concluded.
The best professional development in science is collaborative, stresses content
learning, and is done over a period of weeks with opportunities for follow-up
discussions, experts say. There is no one model. In Massachusetts, for example,
state education officials are using videotapes to show teachers how to teach
to statewide tests that 10th-graders will have to pass to graduate beginning
in 2003. In New Jersey, a partnership with the Merck Institute for Science
Education and local districts stresses fundamental science concepts, as well
as classroom management skills for keeping teaching materials stocked and
organized.
Some of the most effective training is being done far away from schools in
government labs, science museums, and even on beaches, says Susan Loucks-Horsley,
a director of professional development at the National Research Council. Programs
in these settings can show teachers exactly what is meant by inquiry-based
learning so they can model and guide discussions in the classroom, she says.
"They can take a field trip to the beach to look at erosion, develop
questions, and do an investigation. All of a sudden they have questions about
what they are seeing and realize they need to know more," said Loucks-Horsley.
"Inquiry-based learning is not just posing questions to teachers and
kids; it’s exploring physical and natural phenomenon in a way that they
learn serious scientific principles."
In the end, the goal is not simply for U.S. students to score better on TIMSS,
reformers say, but to construct the classroom of the future. "The longer
thing, which we think will take 25 to 50 years to accomplish," says Rutherford,
"is to really put in place the next system, the next curriculum that
will turn out, across the board, students who are really comfortable with
math, science, and technology, and know how to use it and control it and who
can participate in a more interesting and safer world."
For Further Information
"A Splintered Vision: An Investigation of U.S. Science and Mathematics
Education," 1997. Available from the U.S. TIMSS National Research Center,
Michigan State University, College of Education, 455 Erickson
© 1998 by the President and Fellows of Harvard College
Frelindich, N. 1998. From Sputnik to TIMSS: Reforms in Science
Education Make Headway Despite Setbacks. The Harvard Education
Letter, 14.