What is an Electrochemical Cell Definition?

What is an Electrochemical Cell Definition?An electrochemical cell definition refers to a process or circuit which uses a process or method of energy transfer. Cells are one type of electrochemical cell, which use electricity to transfer energy to, or from, a medium. Cells have a different mechanism than are found in chemical reactions.Conductivity, another commonly known term, refers to the ability of a substance to hold the electric charge of an electrical field. There are two types of conductivity: dielectric and permeability. Dielectric conductivity is the type of conductivity we often think of in our everyday lives.Conductivity occurs because some substances are intrinsically good conductors while others are not. The 'non-conductive' substances are the ones which have intrinsic properties which make them strong absorbers of electrical fields. Those with intrinsic properties that are weak absorbers of electric fields are called 'dielectric conductors'. The weaker absorber substan ces are the permeable ones.Conductive energy transfer occurs when two conductive substances, water and a non-conductive substance, are in a potential energy state. Both substances are immersed in water. When the non-conductive substance is subjected to an electric field, the electrons in the substance migrate from their original position into an energy 'reservoir' near the surface of the non-conductive substance. The energy stored in the reservoir then transfers to the surface of the non-conductive substance which has no energy reservoir.The physical behavior of this process is dependent on the size of the reservoirs that store the energy and the internal energy differences between the reservoirs. To illustrate how a multiple-reservoir electrochemical cell works, imagine two small channels where the energy that is held in the smaller reservoir is transferred to the larger reservoir.The larger reservoir holds the energy of the larger channel. The small reservoir stores the energy of the smaller channel. A small reservoir also stores energy that has been dispersed in the medium. This is referred to as a dissipation of energy, which occurs by the diffusion of electrons between the reservoirs.Conducting and non-conducting electrodes are used in both types of electrochemical cells. In one type of electrode, an electrically conducting material is placed in between the two reservoirs. In the other type of electrode, a non-conducting material is placed between the two reservoirs.For a best value, the most conducting material for the largest area will be selected. For smaller areas, the smallest conducting material will be selected.

Organic Chemistry - Teacher Tips on the Subject

Organic Chemistry - Teacher Tips on the SubjectOrganic Chemistry is the study of organic compounds. It deals with the properties of the different elements and molecules, which are found in nature.A normal chemistry class has an introductory lecture and then a number of labs, where a student can experiment on any given chemical substance under different conditions. The materials for a chemistry lab can be from books or from online laboratories. Chemistry labs can also be recorded by digital cameras, either by a student or by an instructor.After a normal chemistry class, the student can pursue a specific study in organic chemistry. In most schools, a student will need to take two years to complete the course. Most universities offer this particular course in the first year of a student's study. Even though, the student will graduate from an advanced university with honors, it is still worth taking the course in elementary school, because the basic lessons will apply to all kinds of sub jects.An advanced course in organic chemistry would require students to take classes in both laboratory science and chemistry. While this kind of lab class would not necessarily be taught in labs, it can be included as part of the primary course. This method allows students to study chemistry at its best, with all the interesting aspects of chemistry. Also, this method involves teaching students how to handle the chemical elements themselves.A student could go to a college in which he or she is to be the only student, and work on the lab assignment, when he or she has completed a chemistry lab with hands-on experience. If there are a lot of students in the course, the professor will help prepare them with the proper lab gear and procedures, so that they can pass the final chemistry exam without much trouble.Organic chemistry also has a lot of experimental aspects to it. Some students are studying how to make a material such as soap, using chemicals found in nature. It would be hard to find out how a material can be made by applying common chemistry, when nature cannot be known with a fair amount of certainty. In the extreme case, one may have to start with simple things, like natural minerals.There are other advantages to chemistry and more advanced subjects like organic chemistry as well. For example, a high school student will be able to understand chemical elements and relate the laws of chemistry to the way a chemical reacts with other materials.

Athletic Tutoring

Athletic TutoringAthletic tutoring is all about helping individuals with athletic skills develop their talent and build on their overall level of development through teaching them the skills necessary to excel in any athletic activity. Athletic tutors help athletes develop their weaknesses, and strengths, and teach them the skills they need to reach their fullest potentials.Athletic tutoring also encompasses several different programs. There are programs for beginners, intermediates, and advanced students. These programs may be based on the athlete's skills, or may be in cooperation with other school divisions. These programs can range from programs that focus on a single sport, to those that cover a variety of sports.In many schools and institutions, athletically skilled children are usually the primary target of tutoring. They often need it in order to learn how to play the sport, and the skills they need to improve their skills and win competitions.Athletic tutoring is different f rom classroom instruction. The classroom is an environment where one learns from teachers who have been trained to teach specific subjects. This is not the case when it comes to athletic tutoring.Athletic tutoring programs focus on teaching students how to use their skills and compete at their highest level. This is done by taking a look at the limitations an athlete has in the sport, and giving them the resources and techniques necessary to overcome these limitations. This is a method that has worked wonders for a number of students.Sport tutors provide students with the skills necessary to advance in a particular sport. They provide tutors, support groups, and coaching that enable them to learn as they play.An ideal athletic tutor should help a child's level of expertise and knowledge increase as he or she learns new things and moves through different levels. Sometimes, this can take time and is not always easy. But, it is often well worth the time, when it does produce the result s desired.

Three Foolproof Rules for Learning Guitar

Three Foolproof Rules for Learning Guitar Suzy S. Whats the best way to learn guitar? No matter which method you choose, or what style of music you want to play, these three rules from guitar teacher Sean L. are sure to put you on the road to success Learning guitar can be a daunting task when first approached. For many it is seen as only for the musically adept, but in reality anyone can learn guitar. By following these three simple rules, anyone can become a great guitarist. 1. Set Goals There is no one path to take for learning guitar and each individual must find their own way. The best way to finding your path is to let your influences guide you. You need to find out why you want to learn the guitar. This will tell you where to put your focus when practicing. Although being a well rounded guitarist is important, there is nothing wrong with excelling in one aspect of the guitar. Is your dream to start a punk rock garage band? Awsome! Work on those power chords.  Jealous of the campfire hero that always knows the perfect singalong? Then maybe mastering the CAGED system is a good idea for you.  Want to play a killer guitar solo to impress your friends? Then get your chops and scales together. Goal setting comes in two categories: 1. The Big Picture: impressing your friends, starting a band, making a living off of music, and becoming a rock god! These are all examples of goals to set that are not achieved in a day, week, month, or year. These goals should be broken up into a series of mini goals. These mini goals are the second category of goal setting. 2. The (not so) Big Picture: This is where learning the basics will lead to learning more advanced concepts and end up leaving you at your Big Picture goal. Usually by the time you’ve reached this goal you will have a new bigger goal, simply because we are all human, and humans are greedy. 2. Follow a Study Plan Your study plan would be those mini goals you (or your teacher) set for yourself. Lets take the example of becoming a campfire hero. This goal involves having a large acoustic guitar repertoire (that would be your Big Picture). To achieve that you need a lesson plan that would involve learning your favorite acoustic guitar songs. You need to learn chords and strumming patterns. 3. Stay Motivated The best way to achieve goals is persistence in your study plan. Guitar has a steep learning curve, but after you develop the basic technical facilities of the instrument learning new things becomes second nature. This is how you stay motivated, achieve realistic goals. The goals can be as simple as learning a G chord, or making that difficult chord change fluently. Keep in mind that having a private instructor can make a huge difference in the speed of your progress. An expert will often know what are the best steps to take to reach your goals. Learning guitar may become one of lifes most rewarding processes for you, as this creative and emotional outlet promotes confidence and relaxation. It can also open new doors of social interaction. I hope you find joy in your musical journey and wish you the best of luck finding your path to sonic enlightenment. Sean L. teaches acoustic guitar, guitar  and music theory  in Methuen, MA.  He has received many awards and certifications in the music world is currently working towards his Associates In Music from  NECC.  Sean has been teaching students since April 2014.  Learn more about Sean L. here! Interested in Private Lessons? Search thousands of teachers for local and live, online lessons. Sign up for convenient, affordable private lessons today! Search for Your Teacher Photo  by  irish10567

What You Need to Know About Computer-Based Testing

What You Need to Know About Computer-Based Testing Computer-based testing is an increasingly popular assessment option at many stages of educationclassroom exams, state tests, and high-stakes assessments at both the graduate and undergraduate level. Even the ACT and SAT will launch digital exams in 2015 and 2016, respectively. This is some great information on the future of technology in education. Computer-based testing contains both pros and cons, however. Here are a few factorsto consider with this form of testing: The inclusion of dynamic questions Instead of simply asking students to answer a multiple-choice problem correctly, certain computer-based formats challenge students to think more deeply about each question. For example, the ACT will require its test-takers to perform virtual tasks. These tasks may include such actions as pouring liquids of different densities into beakers. Here ismore information on the ACT offering a computer based testthat may interest you as well. Dynamic problems require a higher level of engagement with exam material, as they prompt students to consider the question from multiple angles before arriving at a response. Such questions reflect the higher-order cognitive processes that college students must utilize in order to succeed in their classes. However, it is worth noting that these interactive problems are very new. Students who sit for tests like the revised ACT and SAT will effectively serve as experimental subjectstheir question data will assist exam creators in refining the model for future versions of the test. Increased efficiency in assessment The efficiency of computer-based testing benefits administrators, score recipients, and students. For students, this format often involves the release of automatic results at its conclusion. Computer-adaptive tests, such as the GRE, are also designed to more accurately pinpoint a students precise abilities and knowledge within a given subject. Computer-adaptive exams decrease or increase in difficulty based upon previously recorded answers. For example, if a student correctly responds to a problem, the next question is more challenging. Relatedly, if a student answers a question incorrectly, the problems that follow are simpler. Your final score reflects both the difficulty and the number of questions you answered correctlynot just how many of your answers are right. Such tests are certainly complex, both in design and in technique. Students must learn to strategically pace themselves and to prepare mentally for the escalating difficulty of a sections questions. Students must also acknowledge the likelihood of score swings. For example, if you were to complete a second computer-adaptive exam the very next day, your result might be significantly higher or lower. It is thus absolutely critical to fully understand the content and the scoring algorithms that each test involves, which may lead to a longer prep period. Greater command of technology To excel in an era of computer-based testing, students must be familiar with current technology. A number of colleges and universities, as well as professional work environments, require this ability. However, computers can be prone to error, and a significant percentage of students may need to learn basic computer skills before sitting for these exams. This is some great information on digital learning toolsthat you may find helpful as well. A test-taker who is proficient in typing and utilizing a digital calculator has a major advantage (especially on sections involving essay composition and math) over a student who must hunt for the correct function or letter.

Certain Math Learning Issues to Be Resolved

Certain Math Learning Issues to Be Resolved Math is a subject that threatens or interests students to the maximum. Students who understand the core language of Math with its underlying concepts ace it without difficulty. The fact remains that only a handful of students master Math learning in all its spheres. Many students falter somewhere and are not successful in exhibiting their Math knowledge and skills. There are various types of learning issues in doing Math. As every student differ in their attitude and aptitude for learning the subject. Many students have considerable understanding of Math concepts but their poor basic skills pull them down for low scores. An online Math Tutor can trace out the symptoms of Math disabilities in students and pick out solutions for remedying them. What are the common Math learning disabilities? Not having a strong hold on number facts Number facts are the basics of Math learning and students at the preliminary level of subject learning do not hold strong skills in addition, multiplication or division. The result is their careless errors in computation while solving sums at advanced level. They may possess wonderful knowledge in Math concepts at advanced level but are pushed to the extreme of taking remedial classes for their computational skills. Do Math Tutors Leave Takeaways to Help You Improve Sco https://t.co/feIuuZqb15 â€" Tutor Pace (@TutorPace) March 24, 2016 Interactive games, Math puzzles and other such techniques from virtual tutors can wipe out such disabilities from students right from their kindergarten level. Not being able to connect informal knowledge to formal Math learning Many students have very good knowledge about Math facts gathered through informal ways like practical situations and real life contexts. Once they get into formal subject learning, they are unable to connect the two and understand Math in its formal language. Doing homework is very tough for such students. Math homework help online can sort out such issues of students via expert tutor help and bring students to a mode where they can do the subject without a fuss. The tutors use concrete examples to help students in learning Math symbols and notations and understanding concepts without hassle. Difficulty in understanding the language of Math Terminologies in Math need in-depth understanding for hassle free learning.  Many students lack in verbal skills to understand the terms and explanations for Math concepts. They need some guidance for coming out of such critical situations and online tutors in Math equip the students with the verbal skills suitable for Math learning and make students understand concepts through easy explanations thereafter. So, learning issues in Math learning are commonly found among students. They can be dispensed with if proper advice is availed through expert online tutors. Get the best of the services available in the industry and overcome your Math learning disabilities.

Italian Grammar Rules How to Form Singular and Plural Nouns

Italian Grammar Rules How to Form Singular and Plural Nouns Brooke Neuman Mastering Italian grammar can be difficult. Nonetheless, its important if you want to become proficient in the Italian language. Below, Italian teacher Nadia B. shares some tips and tricks on how to form singular and plural nouns In Italian, it’s important to understand how to form singular and plural nouns. After all, nouns are a cornerstone of the Italian languageâ€"or any language for that matter. Luckily, this Italian grammar rule is easy to master as it follows a certain pattern. Once you learn this recognizable pattern, you’ll be able to express more exponentially in Italian. Lets get started! Identifying the Gender of a Noun Regardless of number, each noun has a gender: masculine or feminine. It’s important that you understand how to recognize whether a noun is feminine or masculine. Once you know whether a noun is feminine or masculine in the singular, you can make changes to the ending to pluralize. If a noun is feminine, it generally ends in â€"a in the singular and if it is masculine, it generally ends in â€"o in the singular. See examples below: Feminine:  la mela Masculine:   il ragazzo However, there are some nouns that end in â€"e,  which can be  feminine or masculine. See examples below: Masculine: il ristorante Feminine: la notte Pluralizing the Noun The most basic way to pluralize singular nouns is as follows: Nouns ending in â€"o, the ending changes to â€"i in the plural. See example below: Singular: il libro Plural:   i libri Nouns ending in â€"a, the ending changes to â€"e in the plural. See example below: Singular: la bambina Plural: le bambine Nouns ending in â€"ca change to â€"che in the plural.  See example below: Singular: l’amica Plural: le amiche Nouns ending in â€"e change to â€"i in the plural. See example below: Singular: lo studente Plural: gli studenti Exceptions to the Rule There are several exceptions to the rules listed above: For the nouns that end in â€"io,  the -i is generally not repeated in the ending.  An exception to this are words like lo zio, which becomes gli zii. See example below: Singular:  il negozio Plural:   i negozi not i negozii There are certain  feminine nouns ending in â€"a that change to â€"i in the plural. See example below: Singular:  l’ala Plural: le ali. There are certain  masculine nouns ending in â€"a that  change ending to â€"i in the plural, along with nouns ending in â€"o and â€"e, which can be masculine or feminine. See examples below: Singular:  il problema Plural:  i problemi Singular:  la mano Plural:  le mani There are also nouns ending in â€"a that can be both masculine and feminine. Dentista, for example, can be accompanied by the masculine or feminine article;  la dentista or il dentista. In these cases, the masculine noun changes to â€"i in the plural and the feminine noun changes to â€"e in the plural. See example below: Masculine Plural: i dentisti Feminine Plural: le dentiste Nouns that end in â€"ca and â€"ga have a hard sound that needs to be preserved in the plural. To do so, the plural forms add an -h, but are otherwise normal in their pluralization. These nouns can be either feminine or masculine. Here is an example of each: Singular: la barca Plural: le barche Singular: lo stratega Plural: gli strateghi The same addition of the ‘h’ in the plural also applies to nouns ending in â€"go and in â€"co. Some nouns ending in â€"co, however, don’t include ‘h’ in the plural (l’amico à gli amici). Singular:  il dialogo Plural:i dialoghi Singular:  il pacco Plural:  i pacchi Lastly, another type of noun with a spelling change are those that end in â€"cia or â€"gia. If the â€"i in this ending is unstressed in the singular, it drops the â€"i in the plural. However, if the â€"i is stressed, it is retained in the plural. Singular:la mancia Plural:  le mance Singular:  la farmacia Plural:  le farmacie Abbreviated Nouns In Italian grammar, there are other types of nouns that are  abbreviated, which are shortened to make them easier to write and say. La foto, for example, which is short for la fotografia. With these nouns, they retain the same ending in the plural shortened forms (le foto). Similarly, nouns that end with an accented vowel or a consonant don’t change in the plural, either. See examples below: Singular:  il caffé Plural:  i caffé Singular:  il film Plural:  i film An important part of understanding nouns is also understanding what articles accompany them, including definite and indefinite articles. You can read more about articles in this blog post. While there are many exceptions to nouns, the basic rules of how to form singular and plural nouns will take you quite far. As  you work with your Italian tutor, you can learn the exceptions through practice, listening, and repetition. Before you know it, you will naturally form singular and plural nouns perfectly! Photo by llmicrofono Ogglono Post Author:  Nadia B. Nadia B. teaches Italian in New York, NY. She graduated summa cum laude from New York University, with a double degree in Italian Language and Literature and Classical Music Performance.  Learn more about Nadia here! Interested in Private Lessons? Search thousands of teachers for local and live, online lessons. Sign up for convenient, affordable private lessons today! Search for Your Teacher