|
|
A
New Culture of Teaching for the 21st Century
To
maximize the benefits of technological innovation, we need
to change the way we think about teaching in K-12 schools
By Stone Wiske
Popular
views of educational technology tend to exaggerate both its
promise and its peril. Advocates tout computers and the Internet
as instant remedies for dry curriculum and didactic instruction
in schools. Alarmists worry that computers will replace teachers
and that the World Wide Web will poison the minds of young
people. Both extreme positions place too much emphasis on
the technology itself. People-especially teachers-shape the
impact of computers in schools more than the features of hardware
and software. If we want to understand how to improve learning
in schools, we need to pay more attention to the conditions
affecting the culture and profession of teaching.
Certainly, interactive,
networked, portable technologies have potential as educational
tools beyond that of static materials like pencils and books,
or broadcast media like radio and television. When used by
knowledgeable teachers in a supportive educational context,
these new technologies can significantly enhance teaching
and learning.
Moving beyond "Plug
and Chug"
The story
of graphing calculators is an instructive example. These hand-held
computers are becoming standard equipment in many U.S. mathematics
classrooms. These advanced calculators have a small screen
that displays mathematical functions in graphical form as
well as in tables and formulas. They allow students to spend
less time doing routine calculations, solving equations, and
plotting graphs, and more time comparing mathematical functions,
predicting the effects of variables, and making sense of representations
of mathematical data. They are so inexpensive that many schools
can afford to buy whole sets for their classes so that each
student has one to use.
In recent years,
mathematics textbooks have changed to incorporate calculator-based
lessons, and the College Board has begun to permit students
to use graphing calculators while taking the SATs. Teachers
are gradually learning how to modify both the mathematical
content of their curriculum and their approach to teaching
to take advantage of these calculators. Some schools have
equipment that links calculators to sensors for collecting
data such as temperature, pH, movement, and light. The calculators
can plot these data as a function of time and graph the results.
They can also be connected to equipment that projects the
work from any one calculator to a display so that everyone
in the class can see it. In these ways, graphing calculators
can support inquiry, thinking, and dialogue about mathematics
and scientific data, rather than the "plug and chug"
routines that have characterized U.S. mathematics classrooms.
What can we learn
from this example about the conditions that enable technology
to have important educational effects?
- First, the technology
must afford significant educational advantage. In this case,
calculators allow users to analyze mathematical information
by manipulating linked representations such as formulas,
graphs, and tables-an essential aspect of mathematical inquiry
that is cumbersome with traditional tools of pencil and
paper or chalk and blackboard.
- Second, the
technology must be readily affordable, networked, and portable.
As long as technology is expensive and difficult to move-like
most computers-its impact in schools will be limited.
- Third, technology
alone does not change school practice. Curriculum goals
and materials, assessment policies, and teacher development
must shift as well. Without these changes, a new technology
will merely be used to enact traditional practices.
This last condition-changing
the culture of education-is the most difficult to achieve.
How did all these variables-texts, tests, and teachers-shift
to support the integration of graphing calculators? Much of
the impetus was provided by the National
Council of Teachers of Mathematics (NCTM). This professional
organization represents a wide spectrum of people interested
in mathematics education: mathematicians, teacher educators,
curriculum specialists, and classroom teachers. During the
1980s the NCTM worked collaboratively with all these groups
to develop new standards for mathematics curriculum, pedagogy,
and assessment. Several leaders of this movement had learned
from the failure of the New Math reforms of the 1960s. This
time they took care to build consensus with parents, teacher
organizations, and policy-makers about the new standards.
The NCTM standards,
issued in 1989, shifted the focus of the mathematics curriculum
from rote rehearsal of isolated facts and formulas to investigating,
communicating, and applying core mathematical concepts and
habits of mind. Shortly thereafter, the NCTM issued complementary
standards for the preparation of mathematics educators. In
the ensuing decade, many state education agencies enacted
compatible curriculum and assessment requirements. The National
Science Foundation funded a series of "systemic"
initiatives to support teacher preparation and development
in line with the NCTM standards. Textbook publishers prepared
new editions that reflected the new standards. This combination
of initiatives supported concurrent changes in educational
goals, professional development, and curriculum materials
that were synergistic with the opportunity afforded by the
new technology of graphing calculators.
Rethinking Traditional
Teaching Patterns
This relatively
encouraging story is not a cause for unbridled celebration,
however. Despite the confluence of conditions supporting reform
of mathematics education, U.S. classrooms have not changed
quickly to resemble the NCTM ideals.
In their recent
book The
Teaching Gap, James Stigler and James Hiebert examine
the results of the Third
International Mathematics and Science Study (TIMSS), which
compared mathematics and science achievement among fourth,
eighth, and twelfth graders in 41 nations. The TIMSS data
were collected in the mid-1990s, when the impact of NCTM reforms
was only beginning to be felt in classrooms. Indeed, some
have argued that these data should be regarded as a baseline
against which to compare the results emerging from classrooms
that enact practices consistent with NCTM standards.
Meanwhile, the
TIMSS data are sobering. As Stigler and Hiebert put it, "The
results are dramatic, and they do not paint a flattering picture
of American education." Twenty nations, including Singapore,
Korea, Japan, Canada, and France, scored significantly higher
than the United States in eighth-grade mathematics. Only seven
nations scored significantly lower than the United States.
Part of the study
involved making videotapes of eighth-grade mathematics classes
in three countries: Germany, Japan, and the United States.
A panel of mathematics educators analyzed these videotaped
lessons (and translated transcripts). The panel noted striking
differences in the standard practices of the three countries.
Japanese teachers typically engage their students in working
on challenging problems, and then students share and discuss
their solutions. Teachers of German students-whose scores
were statistically comparable to those of U.S. students-typically
lead students through advanced procedures for solving challenging
problems.
In the typical
U.S. lesson, however, students first watch their teacher solve
low-level problems and then repeat the procedure on numerous
similar problems. Whereas the tapes from Japan and Germany
reveal that three-fourths of teachers develop concepts during
a lesson, most U.S. teachers simply state concepts. The typical
U.S. lesson places greater emphasis on memorizing facts and
formulas than on understanding the underlying rationale. U.S.
students usually follow the teacher's lead, while their Japanese
counterparts spend much of their lesson doing challenging
mathematics.
These patterns
of pedagogy, Stigler and Hiebert conclude, are part of culturally
embedded systems. Shifting classroom practice from routine
rehearsal of skills toward higher-order thinking, independent
inquiry, and sustained work on challenging problems is not
a simple matter of introducing teachers to new technology
or techniques. Learning to teach is less like learning to
use a computer than like learning how to participate in family
dinners: teaching is learned through watching and engaging
in the approaches that one is expected to emulate. Pedagogical
approach is bound up with a web of cultural assumptions. Each
country has its own scripts for what happens in the classroom.
Enacting these
scripts may include customary props or technologies. In Japan,
teachers write copious notes on the blackboard as they explain
concepts, producing a record of their main points that students
can review. In contrast, the most common teaching technology
in U.S. eighth grades is the overhead projector. U.S. teachers
move on to a new transparency when they move to a new point.
These technologies give students a different experience of
the lesson: the Japanese blackboard offers a sustained and
coherent picture, whereas the U.S. overhead projector provides
an ephemeral and disjointed glimpse of the teacher's agenda.
Culturally embedded
teaching patterns are difficult to change, but change is not
impossible. Japanese teachers have made a major shift from
the whole-class instruction and recitation that used to be
their norm. Stigler and Hiebert report that this reform took
several decades and required a systematic approach to educational
change, including explicit learning goals for students, a
shared curriculum, supportive administrators, and sustained
efforts by teachers to make gradual improvements in their
practice.
To
change school practice, curriculum goals and materials, assessment
policies, and teacher development must shift. Without these
changes, a new technology will merely be used to enact traditional
practices.
Stigler and Hiebert
describe the Japanese system of change, which features school-based
professional development focused on "lesson study."
Groups of teachers meet over extended periods of time to develop,
try out, and assess lessons. First the group defines a problem
of practice and plans an approach to this problem in the context
of a particular lesson, usually with a specific hypothesis
in mind. Then the group members teach the lesson to their
students and meet to discuss how it worked and how it might
be improved. Once group members have developed an effective
research lesson, they share it with other teachers. Because
the entire country teaches the same curriculum, many teachers
can benefit from this intensive study of a single lesson.
Japan's new culture of teaching has developed through teacher-led
research, collaboration, dialogue, and collegial exchange
in the very schools where teachers work.
If we want new
technologies to foster significant changes in the content
and process of learning, we need to devise ways of changing
the professional culture of teaching. Changing curriculum
standards and materials, revising assessment devices and policies,
supplying schools with technical infrastructure, and hiring
appropriate technical personnel will all be necessary but
not sufficient. We will also need to change the terms and
focus of dialogue in schools to encourage talking about subject
matter and learning. We will have to change the norms of professional
collaboration so that observing colleagues, exchanging curricula,
conducting rigorous classroom research, risking failure, and
celebrating success become familiar patterns in school workplaces.
Only then will teaching become a "true profession,"
as Stigler and Hiebert advocate, in which "the wisdom
of the profession's members finds its way into the most common
methods. The best that we know becomes the standard way of
doing something."
How can we provide
time for this kind of professional dialogue? In Japanese schools,
the schedule is organized so teachers have time to meet with
one another. Some U.S. schools have also redesigned their
schedules so teachers can meet with colleagues to plan curriculum,
exchange strategies, and analyze best practices. Educators
are also exploring the use of new technologies to extend teachers'
opportunities for collegial exchange about their subject matter
and about effective practices. Stigler and Hiebert recommend
that effective examples of classroom practices be videotaped,
digitized, and annotated. A collection of such examples could
allow teacher study groups to anchor their conversations in
analysis of real classroom interactions. A one-hour video
selected from the TIMSS tapes entitled "Eighth-Grade
Mathematics Lessons: United States, Japan, and Germany"
is now being used by professional development groups around
the country.
It Takes a Cyber-Village
. . .
The Internet offers
a more interactive means of connecting teachers with multimedia
resources, peers, and professional development leaders. For
example, two web-based projects at the Harvard
Graduate School of Education connect teachers and professional
developers with research-based resources, teacher-designed
curriculum models, and forums for collegial exchange.
Active Learning Practices for Schools (ALPS) aims
to support teachers in using educational approaches developed
through research at Harvard's Project
Zero.
Education with New Technologies (ENT), developed at
the Educational Technology Center at Harvard by faculty and
graduate students, uses a research-based framework called
Teaching for Understanding as a structure for integrating
new technologies with practice.
The Teaching for
Understanding framework guides educators to focus on four
elements in helping students develop flexible and robust understanding,
not just memorize facts and formulas. The elements are generative
curriculum topics, clear understanding goals, performances
that cause students to stretch their minds and apply their
knowledge, and ongoing assessment using public criteria linked
to goals. New technologies can enrich each of these elements;
at the same time this framework helps educators clarify how
to design and assess effective applications of these new tools.
ENT is intended
to support collaborative groups of educators interested in
using new technologies to support teaching for understanding.
Designed around the metaphor of a village, this online environment
includes a meeting hall where participants may confer, a resource
library, a learning center offering online courses, and a
gallery with detailed "pictures" of effective curriculum
designs. The gallery incorporates lesson materials, student
work, and reflections by teachers and students about the process
of teaching for understanding. In the future, it will include
video selections along with guides for study groups.
ENT also features
a workshop where teachers can develop and discuss technology-enhanced
lessons. Using the Collaborative Curriculum Design Tool, participants
may work alone or with a team, communicating through an electronic
message system that links to their e-mail. This interactive
tool guides teachers to use the four elements of the Teaching
for Understanding framework as they develop curriculum. Educators
learn to develop generative curriculum topics-that is, topics
that address important concepts in their subject matter, engage
students' interests, and invite inquiry into related ideas.
The tool also helps curriculum developers spell out specific
goals for understanding: What exactly are students expected
to learn, and why? Users then design a sequence of active-learning
tasks that will enable students to meet those goals and demonstrate
their understanding. Finally, the design tool supports the
development of ongoing assessments that both improve and prove
students' mastery of key goals.
Using this tool,
educators are guided to apply new technologies in ways that
enhance one or more of these elements of Teaching for Understanding.
With this guidance, links to related resources, and an electronic
communication system to support collegial exchange, the Collaborative
Curriculum Design Tool enables educators to study and develop
effective lessons, much as the Japanese teachers do in their
study groups. Once teams test and refine a curriculum unit,
they may publish it online so that others may replicate or
adapt it. Shared units deal with a wide range of topics, such
as developing literacy using web-based resources to communicate
with local lawmakers and understanding the Pythagorean theorem
through mathematical inquiry with software.
Integrating new
technologies need not require radical change in educational
goals and methods. Indeed, teachers often start by incorporating
new tools into familiar practices. But even modest beginnings
benefit from opportunities to see good examples, talk with
like-minded peers and advisers, and gain easy access to resources.
In online learning
environments teachers can surmount the barriers of time and
distance to communicate, reflect, and collaborate with colleagues.
As powerful, networked, portable computers become more readily
available, these new technologies may help to foster the development
of a professional culture among teachers. Such a culture of
continuing inquiry into effective practice is necessary if
we are to reap the potential benefits of new educational technologies.
Resources
and Further Information:
Curriculum
and Evaluation Standards for School Mathematics. Reston, VA:
National Council of Teachers of Mathematics, 1989.
Professional
Standards for Teaching Mathematics. Reston, VA: National Council of Teachers of Mathematics, 1991.
J.W. Stigler
and J. Hiebert. The Teaching Gap: Best Ideas from the Worlds
Teachers for Improving Education in the Classroom. New York:
Free Press, 1999.
Third International Mathematics and Science Study (TIMSS). For information
and reports, contact: TIMSS Customer Service, National Center
for Education Statistics, Suite 311, 555 New Jersey Ave, N.W.,
Washington, DC 20208; tel: 202-209-1333; fax: 202-209-1679;
e-mail: timss@ed.gov. http://nces.ed.gov/timss
M.S. Wiske,
Teaching for Understanding: Linking Research with Practice.
San Francisco: Jossey-Bass, 1998.
T. Blythe
et al. The Teaching for Understanding Guide. San Francisco:
Jossey-Bass, 1998.
Active
Learning Practices for Schools (ALPS). http://learnweb.harvard.edu/alps
Education
with New Technologies (ENT). http://learnweb.harvard.edu/ent/home/index.cfm
<<
Back to Table of Contents
<<
To Harvard Education Letter homepage
<<
To Harvard Educational Review
<<
To Harvard Education Publishing homepage
<<
To Harvard Technology in Education homepage
Updated
2/25/06
|