f. oliveira & j.a. paixão
DESCRIPTION
Performance of Portuguese students in Physics Olympiads: bridging the gap between theory and experiment. F. Oliveira & J.A. Paixão. CEMDRX, Department of Physics, Faculty of Science and Technology, University of Coimbra, in Portugal. E-mail: [email protected]. - PowerPoint PPT PresentationTRANSCRIPT
F. Oliveira & J.A. PaixãoCEMDRX, Department of Physics, Faculty of Science and Technology, University of
Coimbra, in Portugal E-mail:
The investigation is ongoing and therefore only a few results will be presented.
In this communication I present just part of my PhD work.
This is the SUMMARYSUMMARY of my oral communication
1. MOTIVATION
2. PHYSICS OLYMPIADS
3. QUARK! PROJECT
4. EXPERIMENTAL COMPONENT
• signaling young students with strong potential for Physics
• identifying difficulties and problems in Physics learning and teaching
• stimulating the development of experimental skills in high school students
I am investigating the potential of Physics Olympiads for:
1. MOTIVATION
• developing new teaching resources
• involving physics teachers in new methodologies
•…hoping to use the results to propose new strategies for the teaching of Physics in Portugal
1. MOTIVATION
I am investigating the potential of Physics Olympiads for:
2. PHYSICS Olympiads
Why study students engaged in Why study students engaged in Physics Olympiads?Physics Olympiads?
In general teachers choose their best students to participate in the competition.
These students are the most motivated, the most curious and eager to learn.
If these students still have difficulties in learning physics (and they do!), what to think of their colleagues who are in a lower level of learning?
Therefore, these students are a good sample to diagnose problems in physics teaching.
In general teachers choose their best students to participate in the competition.
These students are the most motivated, the most curious and eager to learn.
If these students still have difficulties in learning physics (and they do!), what to think of their colleagues who are in a lower level of learning?
Therefore, these students are a good sample to diagnose problems in physics teaching.
Because…
2. PHYSICS OLYMPIADS
For those not familiar with this science competition, it consists of two parts:
2. PHYSICS OLYMPIADS
• The Physics Olympiads began in Portugal in 1985.
• The Physics Olympiads in Portugal are under the responsibility of the Portuguese Physical Society.
Portugal began its participation in the International Physics Olympiads (IPhO) in 1994.
International Physics Olympiads
Ibero – American Physics Olympiads
Awards in Portuguese IPhOhttp://olimpiadas.spf.pt/ipho/ipho.shtml
Awards in Portuguese OIbFhttp://olimpiadas.spf.pt/oibf/oibf.shtml
2. PHYSICS OLYMPIADS
“We can conclude that there are no genetic problems” (just kidding!)
Portuguese students have won medals!
Still Portugal ranks low between most European countries…
In my research I am going to survey the teachers and students who participate in the regional and national phases of the Physics Olympiads.
One of the aims is to identify problems in the teaching-learning process.
2. PHYSICS OLYMPIADS
Show only some data. The 2013 case is still not processed…
This result corresponds to the years 2011 and 2012. Missing 2013! 301 teachers have answered
Lack of time and material are the main causes identified by teachers, for the small number classes doing experimental teaching.
6 – What are the main reasons that prevent the implementation of experimental classes?
Lack of time Lack of material Lack of student interest Absence of a laboratory school
Lack of efficacy of these classes on student learning
PHYSICS OLYMPIADSSome results of the Regional Olympiads – Opinions of Teachers Teachers
Most teachers answered that they need training in the area of experimental teaching. Training should be continued throughout their professional carreer.
The training received at the University is not enough.
This result corresponds to the years 2011 and 2012. Missing 2013! 301 teachers have answered.
15 – Do you feel the need for specific training in the area of experimental
teaching?
Reg
ion
al
Off
ices
The areas where teachers have greater difficulty are: First: modern physics Second: electromagnetism Third: electricity / electronics
This result corresponds to the year: 2011 and 2012. Missing 2013! 301 teachers have answered
17 – What are the topics where you face more difficulties when teaching the experimental component?
Mechanics Acoustics Electricity Electronic
Electromagnetism Thermodynamics Modern Physics Radiation Optics
Regional Offices
This result corresponds to the years 2011 and 2012. Missing 2013! 1034 students have answered
Students have difficulty understanding abstract concepts of physics.
15 – What are the main difficulties you encounter while studying physics and chemistry?
OtherEstablishing connections with the real
world
Mathematics (algebra,
trigonometry...)
Length of core matter
Recognising if a result is physical
meaningful or not
Understanding of abstract
issues
Interpretation of questions
Problem solving
This result corresponds to the years 2011 and 2012. Missing 2013! Question answered by 56 national Olympiads students.
The main difficulty presented by this sample of students is: Difficulty in the use of equipment
Difficulty in the use of equipment
The gap between the theory and experiment
Identifying the tasks to be undertaken in the
experiments
Making graphs
5 – What are the aspects you think are most difficult in the experimental component?
With surveys, students and teachers have diagnosed some problems:
Deficient training in Physics of teachers
Learning of scientific content by students
Deficient organisation of the official Physics curricula
Not enough school resources to promote Physics teaching (well equipped labs, motivated staff)
Reduced number of classes devoted to experiments
Deficient training in Physics of teachers
Learning of scientific content by students
Deficient organisation of the official Physics curricula
Not enough school resources to promote Physics teaching (well equipped labs, motivated staff)
Reduced number of classes devoted to experiments
3. QUARK!-Project
What is it?An (informal) School of Physics for pre-university (high-school) students.
How does it work? Classroom teaching done at the University of Coimbra and via the Internet. From January to June each year. Only one weekend per month. Classes begin on Friday evening and end on Sunday late afternoon.
OBJECTIVEScout for young students with a talent for Physics. Devoted to ”top students” with a strong interest in Physics. Also trains students for the International Physics Olympiads.
PROGRAMNominated by the Olympic Committee - international syllabus of Physics Olympiads
SCIENTIFIC CONTENTMechanics, Electromagnetism, Thermodynamics, Waves and Optics, Modern Physics.
3. QUARK!-Project
LESSONSTaught by university professors.
E-LearningQuark! forum (http://algol.fis.uc.pt)
TEACHERS’ TRAININGIn parallel with classes of students, high-school teachers can also participate in training provided by the Portuguese Physics Society within this project.
3. QUARK!-Project
Other Activities Lectures by scientists, presentations by high-tech companies and Jazz-related activites(!).
4. EXPERIMENTAL COMPONENT
Because… In my MSc research I have shown that the experimental component is indeed very important for the understanding of some Physics concepts and the development of cognitive capabilities.
The experimental component is always present in Physics Olympiads and Portuguese students have shown poor performance at this component.
Because… In my MSc research I have shown that the experimental component is indeed very important for the understanding of some Physics concepts and the development of cognitive capabilities.
The experimental component is always present in Physics Olympiads and Portuguese students have shown poor performance at this component.
4. EXPERIMENTAL COMPONENT
Portuguese students in the IPhO have shown more difficulties in the experimental component than in the theoretical component!Portuguese students in the IPhO have shown more difficulties in the experimental component than in the theoretical component!
I'm investigating!
At the end of the PhD I hope to give a good answer!
In the early years of the Portuguese participation in the International Physics Olympiads (between 1994 and 2000), students had better results in the experimental than in the theoretical component .
In the early years of the Portuguese participation in the International Physics Olympiads (between 1994 and 2000), students had better results in the experimental than in the theoretical component .
And why?And why?
HYPOTHESES
In the curriculum the students had a course called “Physics Laboratory Techniques”.
In this course the students just conducted physics experiments. Had a proper laboratory, time, material and a physics teacher devoted to this subject.
In the curriculum the students had a course called “Physics Laboratory Techniques”.
In this course the students just conducted physics experiments. Had a proper laboratory, time, material and a physics teacher devoted to this subject.
In Physics Olympiads Portuguese students who had attended this course managed good results in the experimental component of the Science Olympiads.
In Physics Olympiads Portuguese students who had attended this course managed good results in the experimental component of the Science Olympiads.
But after a decade the picture is reversed ...
Portuguese students in the Physics Olympiads present better results in the theoretical than in the experimental component.
WE HAVE A PROBLEM…
Why this Why this reversalreversal??
What is happening in physics teaching?What is happening in physics teaching?
In Portugal the Ministry of Education fused the disciplines of Physics and Chemistry.
Students have the same teacher to teach Physics and Chemistry to the same class.
The experimental component of physics is incorporated in the discipline of physics and chemistry.
Portuguese Education System
As the sciences of Physics and Chemistry are grouped in a single discipline, teachers often say that there is no time to teach physics concepts and conduct experimental classes during the school year.
Portuguese Education System
Here students begin to study
Physics!
LEVELS OF EDUCATION in Portugal
NUMBER YEARS
UniversitySecondary EducationSecondary Education 10th, 11th &12th grade
33rdrd Cycle Cycle 7th, 8th & 9th grade
2nd Cycle 5th & 6th grade
1st Cycle 1th, 2th, 3th & 4th grade
Students in Portugal have this discipline for the first time in the 7th grade at the age of 12 and up to the 11th grade at the age of 16.
Only in the 12th grade students may have the discipline of Physics alone, if they choose this discipline.
Students who participate in the Physics
Olympiads must have very deep and solid
knowledge of mathematics and physics.
The current curriculum of the discipline of Physical and
Chemical Sciences of the Portuguese Ministry of Education does
not allow a deep enough knowledge of the main laws of physics.
During this period the students had poor results in the theoretical component
but the best results in the experimental component. These results in
experimental component stemmed probably from the training in the discipline of
physics laboratory techniques.
During this period the students had poor results in the theoretical component
but the best results in the experimental component. These results in
experimental component stemmed probably from the training in the discipline of
physics laboratory techniques.
The Portuguese Physical Society appointed a
committee of university professors who had as main
objective to train students who represented Portugal
in the Portuguese International Olympiads in Physics.
This training was done only a week before competitions.
So little time to prepare!
This training was done only a week before competitions.
So little time to prepare!
Up to now this school was unable to promote practical lessons aimed at developing experimental skills. Up to now this school was unable to promote practical lessons aimed at developing experimental skills.
After attending classes at the Quark!-School the students participating in the Olympiads began to get better results in the theoretical component.
After attending classes at the Quark!-School the students participating in the Olympiads began to get better results in the theoretical component.
The students now have more time to prepare!
There are many concepts of physics and
mathematics that students wishing to
participate in the Physics Olympiads do not
learn in school teaching.
For example, the calculation of integrals is
taught only in Portugal at higher education
level...
There are many concepts of physics and
mathematics that students wishing to
participate in the Physics Olympiads do not
learn in school teaching.
For example, the calculation of integrals is
taught only in Portugal at higher education
level...
At Quark!-school the priority is to
teach the theoretical concepts and
the mathematical tools that are
required by the olympic committee.
At Quark!-school the priority is to
teach the theoretical concepts and
the mathematical tools that are
required by the olympic committee.
I am preparing a kit of low-cost experiments made of simple and easy accessible materials for students and teachers.
Most experimental activities have a structure similar to those presented in the Olympic competitions.
These kits aim at developing a diversified range of experimental skills.
I am preparing a kit of low-cost experiments made of simple and easy accessible materials for students and teachers.
Most experimental activities have a structure similar to those presented in the Olympic competitions.
These kits aim at developing a diversified range of experimental skills.
I Quark!-school
At each session of Quark! I give students a document with two experimental activities:
an activity which has an experimental protocol another experimental activity which has only one sentence that presents the challenge.
At each session of Quark! I give students a document with two experimental activities:
an activity which has an experimental protocol another experimental activity which has only one sentence that presents the challenge.
I Quark!-school
In this second experimental activity students are led to
develop their creativity. They are stimulated to think
and establish a strategy to experimentally solve the
experimental challenge.
In this second experimental activity students are led to
develop their creativity. They are stimulated to think
and establish a strategy to experimentally solve the
experimental challenge.
I ask students to do experiments at home or in school with the teacher's help.
The students deliver the solutions of experimental activities in the next session of the school Quark!
In parallel a document is also given to students with theoretical problems having different degrees of difficulty.
I ask students to do experiments at home or in school with the teacher's help.
The students deliver the solutions of experimental activities in the next session of the school Quark!
In parallel a document is also given to students with theoretical problems having different degrees of difficulty.
I Quark! in school!
The participation of teachers in school Quark! is promoted by the Portuguese Physics Society. The participation of teachers in school Quark! is promoted by the Portuguese Physics Society.
At the same session of the School Quark! Teachers accompanying 20 Olympiads students are invited to attend some theoretical lessons. At the same session of the School Quark! Teachers accompanying 20 Olympiads students are invited to attend some theoretical lessons.
I Quark in school!
These teachers seek to train the Olympic level. These teachers seek to train the Olympic level.
I ask students and teachers to point out the main conceptual difficulties, operational and data analysis when carrying out experimental activities. I ask students and teachers to point out the main conceptual difficulties, operational and data analysis when carrying out experimental activities.
I Quark in school!
Experimental activities which are given to students are also made available to teachers in each session of Quark!
Teachers do experimental activities in groups of two.
After performing the activities, they deal with the data and discuss the results.
After the conclusions I provide a document with methodological suggestions.
In carrying out experimental activities, teachers are guided by university professors.
Experimental activities which are given to students are also made available to teachers in each session of Quark!
Teachers do experimental activities in groups of two.
After performing the activities, they deal with the data and discuss the results.
After the conclusions I provide a document with methodological suggestions.
In carrying out experimental activities, teachers are guided by university professors.
Experimental activities @ Quark!-2013
Issue of Physics
Activity Experimental with Protocol
Experimental challenge – No protocol
Mechanics Estimating the thickness of a pencil trace
Coefficient of Restitution
Kinematics and Thermodynamics Oscillating masses: an
experimental analysisDetermination of Absolute Zero in the
kitchen
Mechanical and electrochemical
Physics of a swing Determination of Avogadro's Number
Optics Magnifying glass Magic balls
Acoustics and electricity Glowing Lamp Speed of sound in air
Influence of the mass of a spring on the oscillation period of a suspended staple.
Measuring “g” using an improvised swing.
Estimate the thickness of a trace of pencil to show that the trace consists of an extremely thin layer of graphite (order of magnitude of nanometer).
Experimental activities with protocol
Study the relationship between the power emitted radiation by an incandescent lamp and its temperature.
Experimental activities with protocol
Study of the optical characteristics of a magnifying glass.
Students have difficulties Students have difficulties • in the calculation of errors
• in the estimation of the uncertainties
• in the linearization of the data
• in the implementation of graphics on graph paper
• in the use of multimeters, etc ...
Students have difficulties Students have difficulties • in the calculation of errors
• in the estimation of the uncertainties
• in the linearization of the data
• in the implementation of graphics on graph paper
• in the use of multimeters, etc ...
The data treatment and the manual dexterity were the main difficulties signaled in the experimental activities. The data treatment and the manual dexterity were the main difficulties signaled in the experimental activities.
Portuguese students use far too often a calculator and/or a computer to do data analysis. This probably leads to a blocking of cognitive competences and know-how.
Portuguese students use far too often a calculator and/or a computer to do data analysis. This probably leads to a blocking of cognitive competences and know-how.
These difficulties were confirmed by the teachers who act as “team-leaders” of the Portuguese delegation and who have access to the students write-ups and marks.
These difficulties were confirmed by the teachers who act as “team-leaders” of the Portuguese delegation and who have access to the students write-ups and marks.
All such skills are required for students participating in International Olympiads in Physics. All such skills are required for students participating in International Olympiads in Physics.
The goal is to determine the impact of the attendance of the Quark!-school in student’s learning. The goal is to determine the impact of the attendance of the Quark!-school in student’s learning.
To test the competences of physics
students who attend Quark!-school a
theoretical pre-test is handed in January,
before classes start, and a post-test is
handed at the last meeting in June.
To test the competences of physics
students who attend Quark!-school a
theoretical pre-test is handed in January,
before classes start, and a post-test is
handed at the last meeting in June.
The theory test questions only surveyed Mechanics,
Thermodynamics, Electricity and Electromagnetism because
students in school, in the discipline of Physical and Chemical
Sciences, had not learned scientific concepts from other areas of
physics.
The theory test questions only surveyed Mechanics,
Thermodynamics, Electricity and Electromagnetism because
students in school, in the discipline of Physical and Chemical
Sciences, had not learned scientific concepts from other areas of
physics.
After 6 sessions of the School Quark!, in June, and having
taught deeper concepts of Mechanics, Kinematics,
Thermodynamics, Electricity and Electromagnetism the same
theory test was presented because it was not corrected in
January and the students did not have access to the correction.
After 6 sessions of the School Quark!, in June, and having
taught deeper concepts of Mechanics, Kinematics,
Thermodynamics, Electricity and Electromagnetism the same
theory test was presented because it was not corrected in
January and the students did not have access to the correction.
All students performed better in the pos-test. In the post-test students had greater skill in mathematical calculation, reasoning and understanding the laws of physics.
All students performed better in the pos-test. In the post-test students had greater skill in mathematical calculation, reasoning and understanding the laws of physics.
In short I have much work to do...
It is important to identify problems in the teaching and learning of physics.
It is challenging to find a strategy to solve the problems.
Test and evaluate new teaching methodologies which will be later tested also in some Portuguese schools.
After proposing changes in the education system maybe there will be more students in Portugal motivated and interested to study Physics.
I have much work to do...
It is important to identify problems in the teaching and learning of physics.
It is challenging to find a strategy to solve the problems.
Test and evaluate new teaching methodologies which will be later tested also in some Portuguese schools.
After proposing changes in the education system maybe there will be more students in Portugal motivated and interested to study Physics.
