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CHEMICAL EDUCATION REFORM IN THE GLOBAL ERA: SATL AS A NEW TREND IN CHEMICAL EDUCATION. Ameen F. M. Fahmy*, J.J.Lagowski** * Faculty of Science, Department of Chemistry,Ain shams University, Abbassia, Cairo, Egypt - PowerPoint PPT Presentation
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Ameen F. M. Fahmy*, J.J.Lagowski** * Faculty of Science, Department of Chemistry,Ain shams University,
Abbassia, Cairo, Egypt E-mail :[email protected]
** Department of Chemistry, and Biochemistry, university of Texas at Austin TX78712.
E-mail :[email protected] Website: www.satlcentral.com
Luxor -Egypt, Nov. 2010
CHEMICAL EDUCATION REFORM IN THE GLOBAL ERA:
SATL AS A NEW TREND IN CHEMICAL EDUCATION
Good Teaching
If There is no Teaching Chemistry Their is no Chemistry
Excellent Research
SATL AS NEW TREND IN THE GLOBAL AGE
-INTRODUCTION.
-THEORITICAL BASES OF SATL.
- -SATL-EXPERIMENTS.
- -CONCLUSION.
- -SELECTED SATL-CONFERENCES
-&WORKSHOPS.
INTRODUCTION:
After current educational Systems deals quite intensively with the impact of the “globalization“ on educational planning and decision making.
So, SATL became a must.
- After the wide spread of systematization in various activities including tourism, commerce,
economy, security, education, health etc..,AND
After globalization became a reality that we live and survive with its positive and negative
impacts on our life.AND
SATL has evolved in the field of teaching and learning starting in 1997, as a fruitful cooperation between Ain Shams University (Prof. Fahmy) and The University of Texas at (Austin (USA)(Prof.Lagowski. JJ
SATL was based on the theories of constructivist, and meaningful learning(1).
Within the frame of these theories effective teaching connects isolated ideas
and information with global concepts
Taagepera and Noori (2000) (2) tracked the development of students conceptual understanding of organic chemistry during a one-year sophomore course.
They found that the students knowledge base increased as
expected, but their cognitive organization of the knowledge was
surprisingly weak.
The authors concluded that instructors should spend more
time making effective connections, helping students to
construct a knowledge space based on general principles.
Fahmy and Lagowski (4-7) have designed, implemented, and evaluated the systemic approach to teaching and learning chemistry (SATLC) Since (1998).
SATL is based on the constructivist theory, and Ausubel’s concept of meaningful learning [8, 9]
Pungente, and Badger (2003) stated that the primary goal when teaching introductory organic chemistry is to take students beyond the simple cognitive levels of knowledge and comprehension using skills of synthesis and analysis – rather than rote memory.(3).
Why SATL IN CHEMICAL EDUCATION ?
-SATL Tecnique;
Help students to understand interrelationships between concepts in a greater context.
Assures that students attain the major goals of education—helping them acquire the higher order cognitive skills.
It provides the basis for systemic thinking and the continuous growth of knowledge that is the mark of a quality education. S
It provides new forms of educator evaluation that include outputs student learning results) in addition to inputs (the observation of teachers in their classrooms.
What is the meaning of SATL?
By "systemic" we mean an arrangement of concepts or issues through interacting systems in which all relationships between concepts and issues are made, clear up front, to the teachers and learners (Fig. 1b),
in contrast to the usual linear method of teaching the same topics (Fig. 1a).
Fig: 1a: Linear representation of concepts
concept concept concept concept
Fig: 1b: systemic representation of concepts
concept
concept
concept
concept
-SATL was based on the systems analysis and theory of constructivism. The following systemic diagram illustrates the criteria& product of
learning by SATL.
Theoretical bases of the SATL
T. Q. T. Q.
SystemizationSystemization
Continuity Continuity
Dual FeedDual Feed
)SATL( )SATL(
DynamicsDynamicsIntegrationIntegration
HolismHolism ConstructivismConstructivism
Positive Attitudes Positive
Attitudes
High Skills
High Skills
Correct Systemic CognitionCorrect Systemic Cognition
Systemic ThinkingSystemic Thinking
SelectivitySelectivityMulti VisionMulti Vision
T. Q.T. Q.
Systemization
Systemization
Continuity Continuity
Dual FeedDual Feed
)SATL()SATL(
DynamicsDynamics
IntegrationIntegration
HolismHolism
ConstructivismConstructivi
sm
Positive Attitudes Positive
Attitudes
High SkillsHigh
Skills
Correct Systemic CognitionCorrect Systemic Cognition
Systemic ThinkingSystemic Thinking
SelectivitySelectivityMulti VisionMulti Vision
Nature of Learning and Teaching Processes in SATL:
1-Learning is an active process:
-SATL-based learning is an active process where learners
are encouraged to discover principles, concepts, and facts and arrange them in a systemic relationship.
- In this process, significant learning interactions occur
between learners, between learners and teachers, and
between learners and context.
2-Role of the teacher in an SATL environment:
- The teacher's role is not only to observe and assess
students, but also to engage the students while they are completing their systemic diagrams .
- Teachers also facilitate the students’ resolution of decisions and their self –regulation.
We started teaching of any course by Systemic diagram (SD0) that has determined the starting point of the course.
We ended the course with a final systemic diagram (SDf) and between both we crossover several Systemics (SD1, SD2,…..)
Systemic teaching strategy
SD0 SDf
SD2SD1Stage (1)
Stage (2)
Stage (3)
(maximum Unknown chemical relation)
(All chemical relations are known)
(?)
(?)
(?)
(?)
(?) ()
()()
() ()
()()
()
()
()
(?)
Educational standards and objectives
Figure: 2
-We have conducted numerous experiments in EGYPTwhich we attempted to establish the effectiveness of
SATL methods not only in chemistry, but also in other basic sciences, Medicinal sciences, Engineering
sciences ,Agriculture, Pharmaceutical, sciences, ……
SATL Experiments in Egypt
- In chemistry, we have conducted a series of successful
SATL-oriented experiments, at pre-university, and university levels of education ( 8,9).
-We have created SATL units in General, Analytical, Aliphatic, Aromatic, Green, and heterocyclic
chemistry.-These units have been used in Egyptian universities
and secondary schools to establish the validity of the SATL approach on an experimental basis.
SATL-CLASSIFICATION OF ELEMENTS
The periodicity of the properties within the horizontal periods is illustrated by the diagram in (Figure 4), and within the vertical groups is illustrated by the diagram in (Figure 7).
Our experiments probing the usefulness of SATL to learning Chemistry at the pre-college level was conducted in Egypt at Cairo and Giza school districts(8,9).
Fifteen SATL based lessons in inorganic chemistry taught over a three - week period were presented to a total 130 students(9).
The achievement of these students was then compared with 79 students taught the same material using standard (linear) method.
PRE-COLLEGE EXPERIMENTS
Electronegativity
Atomic radiusElectronaffinity
Ionization energy
Non-metallic property
Metallic property
Acidic property
Basicproperty
By increasing the atomic number in
periods
?? ?
??? ?
?
Figure (3): Periodicity of properties of the elements within the periods
The periodicity of the properties through the periods can be illustrated systemically by changing the diagram in figure (4) to systemic diagram (SD0-P) figure (5).
The previous diagrams of periods represent linear separated chemical relations between the atomic number and Atomic radius – Ionization energy - electron affinity - electronegativity - metallic and non-metallic properties - basic and acidic properties.
Electronegativity
Amphoteric
property
Metallic property
Ionization energy
Electron affinity
Basic property
Acidic property
Atomic radius
By increasing
atomic number
within the periods
3?? 5
7 ?
11?14?
9?8?
12?16? 15
?
18?20 ?
1
? 2
? 10
?17?19
13?
4?
?6
?Non-metallic property
Figure (4): Systemic Diagram (SD 0- P) for the periodicity of properties
of elements within periods
Electronegativity
Amphoteric property
Metallic property
Non-metallic property
Ionization energy
Electron affinity
Basic property
Acidic property
Atomic radius
By increasing atomic
number within the periods
3 5
7
1114
9
8
12
16
15
1820
1
2
10
1719
13 4
6
The oxidation number for
element in its oxide
21
22 23
Figure(5 ): Systemic Diagram (SDf - P) for the periodicity of theProperties for the elements within periods
After studying the periodicity of physical and chemical properties of the elements we can modify systemic diagrams (SD0-P) Figure (4) to (SDf-P) Figure (5), for periods.
Figure (6): The linear relationships of the properties within groups.
Atomic radius
Electron affinity
Ionization energy
Non-metallic property
Metallic property
Acidic property
Basic property
By increasing the Atomic number in
groups
?? ?
??
? ??
Electronegativity
Periodicity of the properties of the elements within the groups
Also the periodicity of the properties within groups can be illustrated systemically be changing Figure (7) to systemic diagram (SD0G) Figure(8).
Electronegativity
Metallic Property
Non-metallic property
Ionization energy
Electron affinity
Basic Property
Acidic property
HX
Atomic radius
By increasing Atomic number
within the groups
3?? 5
7 ?
11?14
?
9
?
8
?
12?
16
? 15
?
18?20 ?19? 17 ?
10 ?13?
2?
?14?
6
?
Figure (7): Systemic Diagram (SD0 - G) for the periodicity of properties
of the elements within groups
Electronegativity
Metallic Property
Non-metallic property
Ionization energy
Electron affinity
Basic Property
Acidic property
HX
Atomic radius
By increasing Atomic number
within the groups
3 5
7
1114
98
12
16
15
18
20
19 17
10 13
2
14
6
Figure (8): Systemic Diagram (SDf - G) for the periodicity of the properties of elements within groups
After studying the periodicity of physical and chemical properties of the elements we can modify (SD0-G) Figure (7) to (SDf-G) Figure (8).
47
15
0
21
10088
56
92
0
20
40
60
80
100
120
BeforeAfter
Eltabary Roxy "boys"
Nabawia Mosa"girls"
Gamal Abedel Naser "girls"
all the exp.(group)
Figure 9: Percent of students in the experimental groups who succeeded (achieved at a 50% or higher level). The bars indicate a 50% or greater achievement rate before and after the systemic intervention period
-The results of experimentation
8 7
05
64
13
39
46
0
10
20
30
40
50
60
70
Before
After
Eltabary Roxy "boys"
Nabawia Mosa"girls"
Gamal Abedel Naser "girls"
all the control(group)
Figure 10: Percent of students in the control groups who succeeded (achieved at a 50% or higher level). The bars indicate a 50% or greater achievement rate before and after the linear intervention period.
Teachers feedback indicated that the systemic approach seemed to be beneficial when the students in the experimental group returned to learning using the conventional linear approach.
After the experiment both teachers and learners retain their understanding of SATL techniques and continue to use them.
The results from the pre-university experiment point to a number of conclusions:
Teachers from different experiences, and ages can be trained to teach by the systemic approach in a short period of time with sufficient training.
students taught systematically improved their scores significantly after being taught by using SATL techniques.
UNIVERSITY EXPERIMENTSI-ALIPHATIC CHEMISTRY
A study of the efficacy of systemic methods applied to the first semester of the second year organic chemistry course (16 lectures, 32 hours) at Zagazeg University.
The details of the transformation of the usual linear approach usually used to teach this subject that involves separate chemical relationships between alkanes and other related compounds (Figure 11) and the corresponding systemic closed concept cluster that represents the systemic approach were presented (Figure 12).
Figure 11: The classic linear relationship involving the chemistry of the alkanes organized to begin to create a systemic diagram of that chemistry .
Figure 12:systemic diagram (SD0) that represents some of the major chemistries of alkanes .In the systemic diagram some chemical relationships are defined whereas others are undefined. These undefined relationships are developed systematically.
Figure 13: The SATL relation ship between hydrocarbons and their related
After using the diagram shown in Fig. 12 as the basis for the study of the synthesis and reactions of alkenes, and alkynes, we can modify this systemic diagram (SD0 in Fig. 12) to accommodate other chemistries of hydrocarbons as shown in (SD1), Fig. 13.
compounds.
Expanding the chemistry of acetylene converts the systemic diagram(SD1) in Figure (13) to (SD2) shown in Figure (14) .
Figure 14. The SATL relationship between the hydrocarbons and derived compounds
Systemic diagram (SD2) shown in Figure (14) can accommodate to the chemistries of ethyl bromide and ethanol yielding a new systemic diagram.
The systemic diagrams developed in Figures (12) through (14) were used as the basis for teaching organic chemistry course to experimental group at Zagazeg University Egypt). The experiment was conducted within the Banha Faculty of Science, Department of Chemistry with second year students. The experiment involved (41) students in the control group, which was taught using the classical (linear) approach; (122) students formed the experimental group, which was taught using SATL methods illustrated in the systemic diagrams shown as Figures (12 ) through (14 ).
-The success of the systemic approach to teaching organic chemistry was established by using an experimental group, which was taught systemically, and a control group, which was taught in the classical linear manner[12].
-Figures (15) and (16) show the final data in terms of student achievement.
- These data indicate a marked difference between the control and experimental groups
Figure 15: Average scores for experimental groups before and after intervention.
Figure 16: Average scores for experimental groups before and after intervention.
HETEROCYCLIC CHEMISTRY
A course on heterocyclic chemistry using the SATL technique was organized and taught to 3rd year students at Ain Shams University. A portion of the one-semester course (10 lectures, 20 hours) was taught to students during the academic years 1999-2000 and 2004-2005
We use heterocyclic chemistry to illustrate, again, how a subject can be organized systemically, to help students to fit the new concepts into their own mental framework. Figure (17) summarizes all the significant reactions of furan, the model heterocyclic compound.
Figure 17. The classic linear relations involving chemistry of furan
Figure18: Systemic organization of the furan chemistry
These are the reactions that are generally discussed in a linear fashion (Figure 1a) in the conventional teaching approach. However, these reactions can be organized systemically as shown in Figure (18)
Figure 19. The result of completing the undefined relations that appear in Figure 19.
Inspection of Figure (18) reveals seven unknown chemical relations (1-7) among the furan compounds. Figure (18) can be refined to give figure (19) by adding the unknown chemical relations.
Table 2. Percentage increase in student scores.
Percent increase in student scores
Before intervention After intervention
Linear questions 37.32 % 49.53 %
Systemic questions 21.19% 90.29%
Total 32.52% 69.1%
These results are statistically significant at the 0.01 level.
The data summarized in Table 2 show that students taught systematically improved their scores significantly after being taught by using SATL techniques..
SYSTEMICS AND LABORATORY INSTRUCTION
Applying Systemics to laboratory instruction reveals the following advantages, which constitute the principles of benign analysis(2)- Smaller amounts of Chemicals are used.
- Recycling of Chemicals.
- Experiments are done with less hazards, and more
safety.
- Experiments are done more rapidly.
- Students easily acquire a working sense of the
principles of green chemistry.
-Classical laboratory-oriented subject of qualitative analysis involves the application of linearly obtained
chemical information to an unknown solution in a linear way
-In contrast to the linear approach of learning chemistry of cations from a laboratory experience ,
-a systemic approach has been developed that focuses attention on individual species(Figure 20)
Applying this approach to laboratory instruction allows students to experience the colors of chemical species, their solubility characteristics, and their redox behavior.
we have created. Qualitative benign analytical chemistry course for the first-year students of faculty of Sci., Benha, Zigzag University, and Faculty of Education, Helwan University, Egypt. The Systemic based course materials were presented in 24hrs (2hrs period/ per week) From Sept.-Dec. (2001) (5).
The “Green Chemistry” aspects of this approach involve a very small amount of the cation-containing species, which is contained in a very small volume.
Exp. 4
Exp. 3 Exp. 2
Exp. 1
(?)
(?)(?)
(?)
A+X-
A+E- A+Y-
A+Z-
Figure 20: Systemic Investigation of species A+(SI-Plane)
The diagram shows the Plane for qualitative investigation of the species (A+), the preparation of (A+) Compounds, and the interconversion of the species.
of experiments (1-4) in a single test tube on a small sample of lead nitrate (0.5 ml), then they recycle the product of (Exp. 4) to Pb(NO3)2 (Cf. SI - Final).
(SI -1 - Plane)
Exp.1Pb++
Exp.2
Nitrate Salt
Exp.3 (White ppt)Lead
hydroxide
(White ppt.)Lead
Oxalate
HNO3
(?)
(?)
(?)
(Yellow ppt)Lead iodide
Exp.4(?)
(White ppt)Lead
carbonate
Na2C2O4
Pb++
i) HNO3ii)NH4OH
Nitrate Salt
i) HNO3
ii) Na2CO3
(White ppt)Lead
hydroxide
(White ppt.)Lead
Oxalate
HNO3
()
()
()
()
(Yellow ppt)Lead iodide
i) HNO3
ii) KI
()
(White ppt)Lead
carbonate
Recycling
(SI -1 - Final)
The students follow the plane (SI-1) to investigate (Pb2+) in a series
Systemic Investigation of [Pb++] (SI-1): Lead Cycle
Systemic Investigation of [Ag+] (SI-2): Silver CycleThe students follow the plane (SI-2) to investigate (Ag+) in a series of experiments (1-3), then recycle the product of (Exp.3) to AgNO3 (Cf. SI-2-Final).
(White ppt.)Silver
phosphate
(White ppt.)Silver
sulphite.
(White ppt.)Silver
carbonate
Exp. 1
Exp. 2
Exp. 3
HNO3
Ag+
Silver nitrate.
(SI-2 Plane)
(?)
(?)
(?)
(White ppt.)Silver
phosphate
(White ppt.)Silver
sulphite.
(White ppt.)Silver
carbonate
Na2SO3
i) HNO3
ii) Na2CO3HNO3
Ag+
Silver nitrate.
(SI-2 Final)
()
()
()
Recycling
i) HNO3
ii) Na3PO4
Results of Experimentation: -The experimentation results showed that the Benign scheme reduces the consumption chemicals in Comparison with the classical scheme as shown in table (1). This means low
cost, and less pollution. Table 1: Amount of salts needed for Experimental group (Benign scheme), and Reference group (Classic scheme)
Salts Amount required (gm / 50 Students)
Classic SchemeSolid/ (g)
Benign Scheme 0.1M Solution (1/2 liter)
Pb(NO3)2 100 16.5
Al(NO3)3 200 11.0
CrCl3.6H2O 200 13.5
NiCl2.6H2O 200 12.0
Co(NO3)2.6H2O 200 15.0
CdCl2 5H2O 150 13.5
BaCl2.2H2O 200 12.0
MgSO4.7H2O 200 12.0
RESULTS OF EXPERIMMENTATION
The results, of experimentation indicate that;
-a greater fraction of students exposed to systemic techniques in the experimental group, achieved at a higher level than did the control group taught by linear Approach.-
*SATLC improved the students ability to view the chemistry from a more global perspective.
*SATLC helps the students to develop their own mental framework at higher-level cognitive processes such as application, analysis, and synthesis.
*SATLC increases students ability to learn subject matter in a greater context.
*SATLC increases the ability of students to think Systemically.
* Helping students to see the pattern of pure and applied
chemistry rather than isolated concepts, and facts .-
CONCLUSION
*SATLC Helping students to see the pattern of pure and applied
chemistry rather than isolated concepts, and
facts .
*SATLC in Egypt could be used as a successful Model for teaching and learning Chemistry in other African countries. *
CONCLUSION
SELECTED CONFERNCES &
WORKSHOPS ON SATL 1 -15th International Conference on Chemistry Education (15th ICCE) IUPAC
Organized By: Chem. Dept., Faculty of Science, Ain Shams University & UNESCO office
Cairo, and IUPAC.)Aug. 1998 ,(Cairo, Egypt
2 - Workshop on: "Systemic Approach in Teaching and Learning Chemistry" for Teachers and Experts from Cairo, and GizaOrganized By: Chem. Dept., Faculty of Science, Ain Shams University
)Feb. 1998 ,(Cairo, Egypt
4-1st Arab Conference on Systemic Approach to Teaching and Learning Organized By: Science Education Center, Ain Shams University & UNESCO Office Cairo
)Feb. 2001 ,(Cairo, Egypt
3-Workshop on “SATLC In Reform of Chemical Education. Organized By A. F. M. Fahmy, Peter Atkins, J. Bradley, J. Lagowski, M. Schallies, I.F.Zeid.18th International Conference on Chemical Education (18th ICCE),Istanbul, Turky, Aug. 3-8 (2004).
5 - 2nd Arab Conference on Systemic Approach to Teaching and Learning Organized By: Science Education Center, Ain Shams University & UNESCO Office Cairo
)Feb. 2002 ,(Cairo, Egypt
6 - 3ed Arab Conference on Systemic Approach to Teaching and Learning Organized By: Science Education Center, Ain Shams University & Garish University, Jordan
)April. 2003 ,(Cairo, Egypt
7 -4th Arab Conference on Systemic Approach to Teaching and Learning .Organized By: Science Education Center, Ain Shams University
)April 2004 ,(Cairo, Egypt
8 -5th Arab Conference on Systemic Approach to Teaching and Learning .Organized By: Science Education Center, Ain Shams University
) April 2005 ,(Cairo, Egypt
9 -6th Arab Conference on Systemic Approach to Teaching and Learning .Organized By: Science Education Center, Ain Shams University
&Misr International University)April 2006 ,(Cairo, Egypt
10-The 2nd Jordanian Egyptian Conference on SATL and its Applications in different Sciences.Organized by: Tafila Technical University Jordan, and Ain Shams University Egypt. (July 2005) Tafila , Jordan
11-Workshop on SATLC Satellite to Malta III Conference : Organized By:UNISCO,IUPAC,RCS,ACS, University;Istanbul,Turky. (December.2006)
12-Pakistanis School on SATLC,Organized By: Karachi, University;Karachi,Pakistan (18-31 Nov.2008)
Literature
)1( CaineR.N.&Caine,G.(1991).Making connections: Teaching and Human brain.Aleandria,VA:Association for supervision and curriculum Development. (2)Taagepera, M.; Noori, S.; J. Chem. Educ. 2000, 77, 1224
(3) Michael, P., Badger R., J. Chem. Edu. 2003, 80, 779.(4) Fahmy, A. F. M., Lagowski, J. J., The use of Systemic Approach in
Teaching and Learning for 21st Century, J pure Appl. 1999, [15th ICCE, Cairo, August 1998].
(5) Fahmy, A. F. M., Hamza, M. A., Medien, H. A. A., Hanna, W. G., Abdel-Sabour, M. : and Lagowski, J.J., From a Systemic Approach in Teaching and Learning Chemistry (SATLC) to Benign Analysis, Chinese J.Chem. Edu. 2002, 23(12),12 [17th ICCE, Beijing, August 2002].
(6) Fahmy, A. F. M., Lagowski, J. J; Systemic Reform in Chemical Education An International Perspective, J. Chem. Edu. 2003, 80 (9), 1078.
(10) Fahmy A. F. M., El-Hashash M., “Systemic Approach in Teaching and Learning Heterocyclic Chemistry”. Science Education Center, Cairo, Egypt (1999)
(8) Fahmy, A. F. M., El-Shahaat, M. F., and Saied, A., International Workshop on SATLC, Cairo, Egypt, April (2003)
(9) Fahmy, A.F.M., Lagowski, J.J.; “Systemic Approach in Teaching and Learning Aliphatic Chemistry”; Modern Arab Establishment for printing, publishing; Cairo, Egypt (2000)
(7) Fahmy, A.F. M., Lagowski, J. J., Systemic multiple choice questions
(SMCQs in Chemistry [19th ICCE, Seoul, South Korea, 12-17 August 2006].
SATLC-Research Group
Prof. Dr. Hashem A. F. (Egypt)
Prof. Dr. El-Shahat, M. T. (Egypt)
( Mrs. Said, A. (Egypt
Dr. Hamza, S. M. (Egypt)
Prof. Dr. Hanna, W. G. (USA)
Prof. Dr. Medin, H. (Saudia Arabia)
Prof. Dr. Lagowski, J. J. (USA) (Founder)
Prof. Dr. Kandil, N. G. (Egypt)
Prof. Dr. El-Hashash, M. (Egypt)
Prof. Dr. Abdel – Sabour, M. (Egypt)