• Home   /  
  • Archive by category "1"

Ib Biology Hl Coursework Synonyms

It has become almost impossible to speak of a rigorous high school curriculum without also speaking of Advanced Placement (AP) or International Baccalaureate (IB) courses. To many people, they are synonymous: rigor and AP; rigor and IB.

Policymakers, educators, advocates for educational equity and journalists have all helped conflate these terms by using them interchangeably. With everyone jumping on the AP and IB bandwagons, it is easy to forget that claims of curricular rigor always merit scrutiny. 

Politicians are among the most vocal champions of AP and IB courses. In his 2006 State of the State address, Gov. Tim Pawlenty of Minnesota said: “Advanced Placement and International Baccalaureate programs provide the rigor and relevance we need to prepare our students for the future.” He called on districts across his state to introduce AP or IB courses for all students, and he proposed spending $7 million on financial incentives for districts willing to do so. 

The Advanced Placement program, which is administered by the College Board, offers 37 courses in 20 subject areas. In 2007, the College Board began requiring teachers to submit syllabi and receive individual approval before the “AP” label could be included on student transcripts. Teachers design their own courses and syllabi but these must meet various curricular and resource requirements specified by the College Board. Students can take an AP course without taking the AP exam, or can take an AP exam without having taken an official AP course. The exams are graded on a scale of 1 to 5 by more than 10,000 AP teachers and college faculty who come together each June for a weeklong scoring session. 

The International Baccalaureate Diploma Program offers 129 courses in six core subject areas to students in over 120 countries. Almost all courses are two years in length, and teachers design their syllabi according to IB specifications. Students completing the IB Diploma Program take exams in all six subject areas, which are graded on a scale of 1 to 7 by 5,000 examiners around the world. Additional IB requirements include at least 150 hours of extracurricular involvement, a 4,000-word extended essay and a 1,600-word “theory of knowledge” essay. 

At more than $80 each, AP and IB exams are not cheap. Most states now receive federal money to subsidize the costs of such exams for low-income students. Many states have also begun to mandate that each district offer at least one AP course in English, math, science and social studies. 

Enrollment in AP and IB courses has skyrocketed in recent years – 1.6 million students took AP exams in 2008, more than double the number who did a decade ago – partly because admissions officers at selective colleges, faced with unprecedented numbers of applicants, began expecting serious students to have taken the most challenging courses available to them. Another source of the growth is that advocates for educational equity demanded that low-income and minority students enjoy equal access to such advanced classes. Demand for these courses, as a civil right or as part of an equitable education, has even spawned online AP and IB classes for use in rural areas. Yet another explanation for increased enrollments is that Jay Mathews of the Washington Postbegan in 1996 to rank high schools on the number of AP and IB exams that students take. Mathews’ “Challenge Index” does not, however, take into account passage rates. The College Board has welcomed this trend, aggressively marketing AP courses to expand its customer base. 

The AP program began in 1955 as a way to serve elite students by allowing them to complete challenging coursework in their final two years of high school that would then count toward a college degree. The IB Diploma program didn’t start until 1968, but it too had elitist roots. The IB curriculum, based more on the European model of education, was piloted first in international schools. Today, AP and IB courses have become the default college-prep curriculum in many high schools. 

But amid this AP and IB frenzy, what evidence exists that such courses are actually rigorous? To answer this question, the Thomas B. Fordham Institute conducted a study in 2007 called “Advanced Placement and International Baccalaureate: Do They Deserve Gold Star Status?” The study looked specifically at AP and IB courses in English, math, history and biology. Among the criteria for judging each course was the “level of intellectual challenge” it posed for students. The study’s conclusion was that AP and IB courses are, in fact, “mostly gold and mostly worthy of emulation.” 

But why? The study’s authors suggest that two elements characterize a rigorous curriculum: high academic standards and goals, coupled with rigorous exams well-aligned with the standards. The third leg of the standards and accountability tripod is teaching that helps students meet course demands. 

This hardly sounds revolutionary. And yet AP and IB programs have succeeded – where states have largely failed – in setting high standards and designing well-aligned assessments. A closer look at the standards and assessments is thus in order. 

Consider A1 Higher Level English in the IB curriculum: Over the course of two years, students study 15 literary works from various genres, time periods and regions of the world. Everybody studies at least one work by Shakespeare. Students become masters at analyzing prose and poetry they’ve never seen before, and they learn to comment intelligently on a writer’s style as well as his use of literary techniques such as irony, foreshadowing, and symbolism. 

What drives the IB and AP curricula, however, is the exam. And this is why those who support these courses are sometimes seen as radicals: They do not view “teaching to the test,” an abhorrent practice to many, as controversial or a source of embarrassment. If the test is good, the argument runs, then teaching to it isn’t problematic. 

What makes for a good test? In the case of A1 Higher Level English, the test involves a 15-minute oral exam on a passage from a literary work the student has studied; two essays completed at home (with teacher feedback on initial drafts); and two essays (each two hours long) written under exam conditions. Because students don’t know the topics of the final two essays until they sit down to write, they must be intimately familiar with the works they’ve studied. A typical IB English exam question is: “Examine the ways in which rebels, outsiders, or characters alienated in some other way from their society have been presented in two or three of the works you have studied.” 

Superficial knowledge of Albert Camus’ The Strangerwill not suffice here. 

All four essays are graded not by the teacher but by experts elsewhere. The teacher assigns grades for the 15-minute oral exam, but the exam is recorded and experts who listen to samples can adjust a teacher’s grades. For a teacher, this means there are no shortcuts to preparing students well: Each student must be able to speak and write cogently about prose and poetry he has never seen before. There also is no room for grade inflation. Unprepared students will do poorly, and these results will reflect negatively on their teacher. The stakes are high, but college credit awaits those who do well. 

AP exams, by contrast, rely more on multiple-choice questions. The AP English literature exam, for instance, consists of a one-hour multiple-choice test (with 55 to 60 questions) and three 40-minute essays. The multiple-choice section counts for 45 percent of the exam grade, the essays 55 percent. Both assess a student’s ability to interpret literature. 

But even AP exams that require students to know a lot of facts – such as those in U.S. and European history – also foster critical thinking among students. Consider the European history AP exam. It is not uncommon for students to learn by heart hundreds of significant events and the dates they occurred during five centuries of European political, economic and social history. Such memorization serves them well on the multiple-choice questions. But to write the essays – making a case for why the Treaty of Versailles led to World War II or why nation-states came to replace empires in 19th- and early 20th-century Europe – students must also understand how all of the facts fit together. They have to be able to see causes, consequences and trends. A decade or two later, students likely recall few of the dates they once knew. But what remains are the critical thinking skills they developed, which allow them to see the big picture and make connections among seemingly unrelated pieces of information. 

AP and IB teachers realize what many others do not: that the “content vs. critical thinking” debate is a false dichotomy. The two sides should be seen as complementary, not mutually exclusive. And the debate is largely irrelevant in most high school classes, which offer a thin intellectual gruel that neither asks students to learn much content nor to think about what they do learn. 

Yet, while AP and IB courses have spread in recent years, some schools and districts have decided to drop them. Their rationale is almost always that they wish to escape what they say is the curricular straitjacket imposed by such programs. AP courses in particular are dismissed as requiring teachers to cover too much ground too quickly. 

When “coverage is king,” as some educators say, that coverage is often decried as mile wide and inch deep. 

John Klemme, principal of Scarsdale High School in New York, justified his school’s decision to drop AP this way in an October 2008 Education Week  letter to the editor: 

[Our school] has made the decision to move beyond the AP curriculum – not because it does not serve many students well elsewhere who might otherwise not enjoy a rigorous curriculum, but because it does not mesh well with the intellectual aspirations we hold for our students. We are in the fortunate position to be able to deliver students richer courses of study in all disciplines that encourage higher-order thinking and habits of mind such as synthesis, evaluation, persistence, and tolerance for ambiguity in the face of difficult questions and problems. 

Scarsdale has thus replaced AP with what it calls “Advanced Topics” courses. The move has raised eyebrows among some observers, who question the real motives of affluent schools that drop AP or IB. Bruce Poch, vice president and dean of admissions at Pomona College, has suggested that the “independent schools moving away from AP are either reaching to define a new elite standard for the parents and students they serve – or, perhaps, a more cynical assumption is that they are just working to find another way to offer something which won’t be so easily measured by a common scale.” 

In a January 2010 New York Times video op-ed entitled “Advanced Pressure: The Problem with A.P. Classes,” an AP biology teacher at Acalanes High School in Lafayette, Calif., said “the course is a runaway train. There’s no way we can cover all of the material in one year. It’s impossible.” The teacher, Jay Chugh, also said, “I feel like I’m doing a disservice to the students because I’m sacrificing quality of content for quantity of content.” 

Deborah Stipek, Dean of the School of Education at Stanford University, concurred: “Unfortunately, it’s turned into a kind of gatekeeper to many universities, so now it’s not going deeper, really challenging yourself.  It’s ‘how many AP classes can I rack up so that I have more AP classes than the people I’m competing with’ … and it creates a mentality that was expressed very well by my daughter. After her French AP test, she said, ‘I never have to speak French again.’ ” 

Despite such criticism, the Advanced Placement program continues to enjoy tremendous growth and thus seems unlikely to disappear in the foreseeable future.

Justin Snider is an International Baccalaureate examiner and a former high school English teacher. Currently, Snider teaches writing at Columbia University, where he is also a research fellow at the Hechinger Institute on Education and the Media.

One of the evaluation strategies used by students on the exam is the "Hawthorne Effect." This is often used as a synonym for demand characteristics. I think that this needs a bit of clarification.

Demand characteristics refer to when participants unconsciously change their behavior to meet the expectations of the research. Examples include expectancy effect and social desirability effect. Demand characteristics are different from the Hawthorne Effect. The Hawthorne effect is defined as working harding because one knows that he/she is being observed. In many studies - for example, Loftus & Palmer, it is very difficult to argue that the participants were "working harder," and thus the use of the term is not correct.

Reactivity is when individuals alter their performance or behavior due to the awareness that they are being observed. Reactivity is not limited to changes in behaviour in relation to being merely observed; it can also refer to situations where individuals alter their behavior to conform to the expectations of the observer. An experimenter effect occurs when the experimenters subtly communicate their expectations to the participants, who alter their behavior to conform to these expectations. The Pygmalion effect occurs when students alter their behavior to meet teacher expectations. Stereotype threat is one other example of reactivity.

The Hawthorne Effect is a specific example of reactivy; however, it is not a highly appropriate evaluation strategy for most psychology experiments.

Here is a typical example of the misuse of the term:

A 1978 study, to establish whether cerebellar neurostimulators could mitigate the motor dysfunction of young adults with cerebral palsy found that the Hawthorne Effect adversely affected the findings. Objective testing showed that all of patients reported that their motor functions improved and that they were happy with the treatment.

The results are more probably affected by expectancy effect, social desirability effect or conformity effects - not by the Hawthorne Effect. The Hawthorne Effect refers to the tendency of some people to work harder and perform better when they are participants in an experiment. It is difficult to see how these individuals are "working harder and performing better" in the above study.

It is important for us to recognize that the original studies that gave the “Hawthorne Effect” its name have long been discredited.

The original study and its limitations

Between 1924 and 1932 Elton Mayo carried out a series of experiments at the Hawthorne Works near Chicago. The company had commissioned studies to determine if the level of light within their building affected the productivity of the workers. Mayo found that hourly output rose when lighting was increased, but also when it was dimmed. It did not matter what was done; so long as something was changed, productivity rose.

He noticed that this effect occurred when any variable was manipulated. He concluded that it happened because the workers automatically changed their behavior. They increased output, simply because they were aware that they were being observed. He argued that the workers felt important because they were pleased to be singled out and that this factor alone accounted for any changes in behaviour.

If we only know what is outline above, we do not have a good understanding of the study. By today's standards, the study is fatally flawed. Here are some things to know about the original study.

  • Only five workers took part in the study, and two were replaced partway through for gross insubordination and low output.
  • The group’s performance didn’t always increase.
  • There were many confounding variables, such as the use of incentive pay and rest breaks. In fact, participants in the first experiment ranked “earnings” among the top three reasons why they preferred the test room over regular working conditions.
  • In some cases workers received productivity reports and often worked towards known productivity goals, which may have influenced them more than the trivial changes in working conditions.
  • Increased production was measured by the average output per day. This led to many misleading statistics. For example, lighting was always changed on a Sunday, when the plant was closed. When it reopened on Monday, output rose compared with Saturday, the last working day before the change, and continued to rise for the next couple of days. But a comparison with data for weeks when there was no experimentation showed that output always went up on Mondays. Workers tended to work harder for the first few days of the working week regardless of the lighting, before hitting a plateau and then slackening off.
  • Another of the original observations was that output fell when the trials ceased, suggesting that the act of experimentation caused increased productivity. But experimentation stopped in the summer, and it turns out from the records of production after the experiments that output tended to fall in the summer anyway. This is when most of the employees would take their holiday in order to avoid the heat of the factory.

The Hawthorne Effect today

Many modern researchers consider the Hawthorne Effect no more than a myth. What is important for us as teachers is to realize that this theory is perhaps not very helpful in understanding most research.

  • The Hawthorne effect has to do with "improvement of productivity." The fact that a person changes their behaviour simply because they are in an experiment is not the Hawthorne Effect.
  • It is not correct to say that any manipulation of an IV can cause improvement in one's behaviour. This is also not the finding of the Hawthorne experiments.
  • Changes in the dependent variables in the original study took place over many months and even years. The Hawthorne Effect is not meant to be applied to short-term exposures to changes in the IV. The actual studies looked at the manipulation of several variables over time. If the Hawthorne Effect is, in fact, valid, then it is much more complex than students realize.

One thought on “Ib Biology Hl Coursework Synonyms

Leave a comment

L'indirizzo email non verrà pubblicato. I campi obbligatori sono contrassegnati *