Assessment of release water reuse purified in Agriculture case station Allalik Annaba

The treatment of wastewater can be achieved collectively in the Allalik station in Annaba. Thus, the station provides a global wastewater  treatment to ensure the sustainability of the ecosystem as a whole. The results obtained for the contamination on the Selenuim index (CI = 6.5) shows that the analyzed water is polluted by the Selenuim. For other  parameters analyzed the values obtained for IC compliant. It can be seen from the Comparison between the quantity of polluting substances  contained in the wastewater before and after treatment a sufficient diminution of this quantity of  pollutants; therefore the use of this purified water in the natural environment does not degrade the latter.Key words: wastewater, Pollution, Contamination, Selenium

The Winding Road to Discovering the Link between Genetic Material and DNA

This is an account of the three-centuries long journey to the discovery of the link between DNA and the transformation principle of heredity beginning with the discovery of the cell in 1665 and leading up to the 1953 discovery of the genetic code and the structure of DNA.  This account also illustrates the way science works and how scientists do science as well as the fact that scientists are also subject to the same human foibles and short-comings as people in any field of endeavor.  Their use of the scientific method helps them find the path back from false starts and erroneous conclusions but does not assure a smooth progression toward the truth.  What emerges from this example is the scientists’ search for explanations based on empirical evidence, with the goal of trying to disapprove, rather than prove, a given theory and explanation.  As scientific knowledge increases, answers to scientific questions may become outdated, or they may generate a new set of questions that require new ways of thinking and conducting experiments.  Science educators have already recognized the value of historical materials and events in fostering an accurate understanding of science and in achieving desirable, positive and realistic attitudes toward science and in developing scientifically aware citizens. This is simple because the history of science can provide a vital background for students, detailing how science and scientists work and how scientific knowledge is created, validated, and influenced. However, desirable attitudes and behaviors toward science are not likely to be achieved unless history of science is learned and appreciated by all young citizens. Thus, there is a need for educators to involve, investigate, and explore the application of historical science and to show how this can contribute to accurately and explicitly show what science is, how it works, how scientists operate as a social group and how human societies direct and react to scientific endeavors both locally and globally (McComas, 2015, Cherif, 1988, Klopfer, 1969). And it is here where the history of science, the nature of science and how scientists do science is of enduring interest to us as well as to many educators in the scientific community. For those who might use this essay as classroom reading material, we provide a set of questions as an appendix that teachers and faculty may use to reinforce understanding of the essay.   Key Words: DNA, Genetic Code, Scientific inquiry, scientific discovery, Scientific method, Empirical evidence, Theory and explanation, How science works, Humanity and civic engagemen

Developing Mathematical Knowledge and Skills through the Awareness Approach of Teaching and Learning

Every object we think of or encounter, whether a natural or human-made, has a regular or irregular shape. In its own intrinsic conceptual design, it has elements of mathematics, science, engineering, and arts, etc., which are part of the object’s geometric shape, form and structure. Geometry is not only an important part of mathematics, but it is also an important part of daily life.  However, geometry is challenging for some students, even high-achieving students.  One way to help students understand geometry and its relevance in life is to engage students to discover them cognitively, then to research and identify them in real world examples and then to relate them to past, present, and future innovations that improved our way of thinking about ourselves and the world around us.  This interdisciplinary activity uses the Developmental Awareness Approach of Teaching and Learning (DAATL) to help students discover principles, acquire knowledge, and learn mathematical concepts including surface area, volume, dimensions, regular and irregular plane figures, solid polygons (regular polygons and polyhedra), thinking design, and graph making, etc.  It is designed to help students become acquainted with the most useful and familiar parts of mathematical geometry and its application in daily life through connections with disciplines such as science, engineering, art, design, and social studies.  The Development Awareness Approach of Teaching and Learning (DAATL) capitalizes on student's natural curiosity, inclination to comprehend as well as students love of drawing, doodling, painting, thinking and talking.  Throughout the learning process, students are engaged in authentic learning activities by real and concrete doing with clear purposes, thinking analytically, and evaluating their understanding of texts and ideas orally, in drawing, and in writing. This approach of teaching and learning has been tried and modified to ensure maximum effectiveness of acquiring understanding of the intended learning concepts.   The activities can be used with students in elementary school up to 2-year college levels. Keywords: Geometry, Learning Math, Developmental Discovery Approach, Active Learning, Student’s Active Engagement

Strengthening the Academic Department Through Empowerment of Faculty and Staff

Empowerment of employees has been a primary concern of business for many decades, under the premise that involvement of employees in decision making leads to superior performance and results. Acceptance of the practical value of empowerment by colleges and universities is more recent and more rare, despite the centrality of ideas such as faculty governance and recognition of the faculty’s essential role in the academic enterprise. Empowerment in academe is defined as the process whereby stakeholders are encouraged and supported in utilizing their knowledge, skills, and creativity to embrace ownership and accountability for the well being of their department and institution. The process requires stakeholders to collaborate in order to establish clear goals and expectations focused on the institution’s vision and mission but within agreed-upon boundaries. This alignment of departmental and institutional goals is a key ingredient of empowerment, one that Black (1987) calls ”enacting the vision” in organizations

Which Sweetener Is Best for Yeast? An Inquiry-Based Learning For Conceptual Change

One way to help students understand the scientific inquiry process, and how it applies in investigative research, is to involve them in scientific investigation.  An example of this would be letting them come to their own understanding of how different variables (e.g., starting products) can affect outcomes (e.g., variable quality end products) (e.g., Cherif, Gialams & Siuda, 1998; Puche & Holt, 2012; Hazzard, 2012).  In this inquiry based learning activity, students work logically and systematically to design a scientific study geared to investigate the question of sweetener preference for yeast.  In doing this, they learn to use skills associated with inquiry such as problem solving and communication–--including the scientific practices of hypothesizing, investigating, observing, explaining, and evaluating (e.g., Cherif, 1988; NRC, 2011; Robinson, Nieh, & Goodale, 2012).  They enforce their understanding of learned concepts and skills by communicating what they have learned through the process of writing a scientific paper aimed at publication in a peer reviewed scientific journal.  In doing so, they learn how scientists practice science, learn cross-disciplinary science concepts and core ideas, and discover implications and applications for the results and findings of the investigative inquiry.  In this paper, we also provide the necessary background and information teachers and student-teachers need to help them to feel confident and competent in carrying out the learning activities with their students and be able to answer unanticipated questions. Keywords: Inquiry-based learning, student success, sweeteners, yeast, fermentation, scientific metho

Instructional Strategies for Motivating and Engraining Generation Z Students in Their Own Learning Process

In the last few years, a number of significant research studies were conducted focusing on identifying and determining the root cause and also factors that critically contribute to students failure and success in higher education. These studies have enabled educators to evaluate the underlying causes by analyzing different perspectives presented by students, faculty and academic leaders. Various studies were conducted and published in the past that have addressed the same issue. For example, in three related studies conducted and presented at the Higher Learning Commission (HLC) conference in Chicago, Illinois, the surveyed participants (students, faculty, and academic leaders) provided concrete root-cause factors for student’s failure at college and university level. Student’s academic readiness, self-motivation, study habits, and students attitude towards education were the most mentioned root-causes by both, faculty and academic leaders (Appendix 1). During the studies, all participants agreed upon the fact that in order to succeed, students should have clear mindsets and should be aware of the reasons and requirements they will need to meet in order to enroll in a specific course. They should be thoroughly aware of their purpose for attending a school beyond just getting passing grades and a degree to get jobs.   However, all three surveyed groups strongly believe that it is not only the student’s responsibility, but also the responsibility of instructors and college administration to keep students motivated after admitting them to their colleges, programs, and courses (Cherif, Movahedzadeh, Adams, Martyn 2013; 2014; 2015).  In this paper, we explore the implementation of some proposed recommendations from various research studies for improving students learning and instructors teaching in a classroom setting. Keywords: Modern students, Motivations; Student academic performance and retention, Student success. DOI: 10.7176/JEP/10-3-0

Brain Talking: Classroom Activity to Engage Students in Deep and Meaningful Learning

One of the best ways to take care of ourselves is to take care of our own brain. To do so, we need to individually learn both how our brain functions and how to know it is healthy and functional, at an optimal level, throughout our life span. After all, using Mariettle DiChristina’s (the chief editor of the Scientific American) words, our gelatin-like brain contains all that makes us who we are, including our hopes and dreams (2016, p. 6).  We do know that brain aging starts early (Sandres, 2016).  In the hopes of increasing brain health and learning about the human brain, we designed role play learning activities and sets of related assignments for students to learn about brain structure, function, and how such learning can enhance our understanding of how to protect our brain from various mental disorders/health problems and to optimize its function and in turn the quality of our own lives. If we want to stay fit, feel better, look younger, and live a healthy, longer life with sharp memory and high mental function, then the pathway to achieve all these is through meaningful understanding of our brain through purposefully well designed learning tasks.  We have designed a scenario through which students are actively engaged in a purposeful redesign of the human brain through a role-play pedagogical learning approach. Students adapt or change different parts of the brain and compete for permission to alter the structure and the function of a given part for a purposeful reason. Throughout the processes, students conduct research, work individually and in collaboration with others in groups. Students form and present informative and research-based supportive arguments in open forums. Through this role-play, teachers and instructors provide initial resources for the students, and then continue to provide effective feedback to support student learning and extend it to higher levels.  Role-play has been shown to increase interaction and engagement by placing students in an active role in the classroom as they act out behaviors, concerns, and actions associated with a character. Students who act out assumed roles have also been shown to gain new perspectives and grow a deeper understanding of what it would be like to be that character in real life (Cherif and Somervill, 1995). The hope is that by learning about the brain in early school years, not only do we stay mentally sharp but also we are able to continue to have new learning experiences and live life to the fullest throughout our entire life span. Keywords: Brain, Role play, Active learning, Student’s engagement, Effective instruction, Brain disorders, Healthy life-span

The Role of Educators in Growing Leaders and Leadership Among School Students

Student activism has been a powerful force through the 20th century and continues into the 21st century. Student protests now are more likely to be instigated by local events and one can see that when students are supported and encouraged, their leadership grows. This paper considers the role of educators in helping students develop their leadership abilities and skills through six examples: climate change protests started in Sweden, gun violence protests in schools sparked in the United States, protests highlighting refugee crisis in Greece, work to understand homeless individuals as human beings, protests focusing on the care for stray animals and movements to pay reparations to descendants of slaves in the United States. Each example is then viewed through the lens of what educators can learn from that experience so that they can most effectively encourage and help students in future movements. Keywords: Student activism, Student’s Leadership, Education Reform, Student’s Engagement DOI: 10.7176/JEP/10-18-01 Publication date:June 30th 201

An Assessment of Personal Knowledge Management for Teachers in Malaysian Secondary Schools

Personal knowledge management is an interactive process between individuals' ideas and knowledge to facilitate knowledge sharing among them. It provides a framework for individuals to manage, integrate new information to enrich their knowledge assets in an effective manner. This study investigated to what level secondary schools teachers manage their knowledge in Malaysia. A questionnaire was distributed to teachers in secondary schools in Malaysia in five states. A total number of 409 responses were collected from 27 schools. The findings showed the practice of PKM processes is medium. Thus, Malaysian secondary schools need to encourage their teachers to share their personal knowledge to enhance the teacher profession and student achievement