BACKGROUND: TEACHERS NEED TO HAVE MANY DIFFERENT TYPES OF KNOWLEDGE AND THERE EXISTS AN ELABORATE KNOWLEDGE BASE FOR TEACHING THAT INCLUDES PEDAGOGICAL CONTENT KNOWLEDGE. THE IDEA OF PCK HAS EMERGED AS AN ESSENTIAL KNOWLEDGE BASE, AND THERE IS SOME CONSENSUS THAT THIS KNOWLEDGE DEVELOPS DURING THE TRAINING OF TEACHERS AND IN THE CONTEXT OF THEIR PROFESSIONAL PRACTICE...

THE CURRENT RAPID DEVELOPMENT OF GREEN ANALYTICAL CHEMISTRY (GAC) REQUIRES CLEAR, CONCISE GUIDELINES IN THE FORM OF GAC PRINCIPLES THAT WILL BE HELPFUL IN GREENING LABORATORY PRACTICES. THE EXISTING PRINCIPLES OF GREEN CHEMISTRY AND GREEN ENGINEERING NEED REVISION FOR THEIR USE IN GAC BECAUSE THEY DO NOT FULLY MEET THE NEEDS OF ANALYTICAL CHEMISTRY. IN THIS ARTICLE WE PROPOSE A SET OF 12 PRINCIPLES CONSISTING OF KNOWN CONCEPTS (I.E. REDUCTION IN THE USE OF REAGENTS AND ENERGY, AND ELIMINATION OF WASTE, RISK AND HAZARD) TOGETHER WITH SOME NEW IDEAS (I.E. THE USE OF NATURAL REAGENTS), WHICH WILL BE IMPORTANT FOR THE FUTURE OF GAC.

IN ORDER TO REACH AN IDEAL SOCIETY AND KEEPING PACE WITH THE WORLD OF SCIENCE, PAYING ATTENTION TO NEW IDEAS NECESSARY IN EDUCATIN ON THE BASIS OF GREEN CHEMISTRY IS NECESSARY [1]. GREEN CHEMISTRY TEACHING CAN BE A NEW TENDENCY TO SAFER AND EASIER LIFE. BY MEANS OF THINKING AND PROBLEM SOLVING SKILLS CAN BE REINFORCED IN LEARNERS [2]. WE CAN USE DIFFERENT PROCEDURES TO DEVELOP GREEN CHEMISTRY IN CLASS, BUT THE MOST SUITABLE PROCEDURE IS STUDENT–CENTERED ONE. IN ORDER TO GET MEANINGFUL LEARNING, IT IS BETTER TO ENGAGE STUDENTS IN GREEN ACTIVITIES [3].TEACHING SAPONIFICATION BY MEANS OF GREEN CHEMISTRY DEALING WITH TENDENCY ASPECTS OF THE SUBJECT IS CONSIDERED AS IN EXPERIMENT WHICH COVERS MANY OF GREEN CHEMISTRY OBJECTIVES. IN THIS STUDY AMONG 12 PRINCIPLES OF GREEN CHEMISTRY, OBJECTIVES RELATING TO 1, 2, 3, 4, 5, 6, 11 AND 12 IN SAPONIFICATION ARE DEALT WITH. STATISTIC POPULATION CONSIST OF EXPERIMENTAL GROUP (N=30) AND CONTROL GROUP (N=20). THE RESEARCH HAS BEEN DONE THROUGH DESCRIPTIVE–EVALUATIVE METHOD. THE DATA COLLECTED THROUGH TEACHER-MADE TESTS FOR COGNITIVE DOMAIN OF LEARNERS AND CHECK LISTS FOR TENDENCY AND SKILL DOMAIN OF LEARNERS.THE PURPOSE OF THIS STUDY IS TO WALK TOWARD EMERGING GREEN CHEMISTRY AS A TEACHING BASED ON LABORATORY IN INVESTIGATION METHOD BY COMPARISON BETWEEN CLASSICAL TEACHING AND TEACHING BASED ON GREEN CHEMISTRY OBJECTIVES, PROCEDURES AND PREREQUISITE ARE PROPOSED TO ENTER GREEN EXPERIMENTS IN CHEMISTRY PEDAGOGY. SOME RESULTS SHOW THAT TEACHING ON THE BASIS OF GREEN CHEMISTRY OBJECTIVES, PLAY IMPORTANT ROLE IN EDUCATING RESPONSIBLE STUDENTS DISCOVERING TALENT STUDENTS, TRAINING CREATIVITY, ENCOURAGING AND MOTIVATING STUDENTS TO STUDY AND RESEARCH IN THE FIELD OF GREEN CHEMISTRY AND REPLACING GREEN METHOD BY CLASSICAL METHOD. THEY ALSO LEARN WAYS OF REDUCING ENERGY USING, TO LESSEN WASTE AND USING LESS CHEMICAL MATERIALS WITHOUT QUALITY DECREASING.

GREEN CHEMISTRY IS DIFUSSING THROUGHOUT THE CHEMICAL INDUSTRY, AND ICLUDES USE AND DEVELOPMENT OF NEW SUBSTANCES AND PROCESSES THAT IMPACT OTHER SECTORS SUCH AS AGRICULTUER, HEALTHCARE, ENERGY, ELECTRONIC, AND AZACROWN COMPOUND. THE ROLE GREEN CHEMISTRY IS INTIMATELY RELATED TO BROAD EMERGING TREND IN POLICY [12]. ...

GREEN CHEMISTRY IS DIFUSSING THROUGHOUT THE CHEMICAL INDUSTRY, AND ICLUDES USE AND DEVELOPMENT OF NEW SUBSTANCES AND PROCESSES THAT IMPACT OTHER SECTORS SUCH AS AGRICULTUER, HEALTHCARE, ENERGY, ELECTRONIC, AND AZACROWN COMPOUND. THE ROLE GREEN CHEMISTRY IS INTIMATELY RELATED TO BROAD EMERGING TREND IN POLICY. FOR THIS PERPOSE SULFOXID WAS PREPARED BY REACTION OF P-CRESOL AND THIONYLCHOLORIDE AND DICHOLOROMETHANE AS HALAL THEN COMPOUND (1) REACT WITH ALLYL BROMIDE GIVE BISALLYL (2) AND BISALLYL OXIDIZED WITH MCPBA GIVE BISEPOXIDE (3) AT LAST COMPOUND (3) WITH DIAMINE (DIETHYLENETERIAMINE) REACTION GIVE AZACROWN COMPOUND (4). THE MAIN PRODUCTS WERE IDENTIFIED BY SPECTRAL SUCH STUDIES SUCH AS C NMR, H NMR AND SPOT TEST.