2011年8月31日星期三

Katharine Beals, PhD analyzes the problems with K-12 assessments Rosetta Stone Languages and recommen

Potential problems:An assessment may go wrong in any number of ways. It may Rosetta Stone Store set too high a bar or too low a ceiling; it may assess things that aren’t being taught or that aren’t relevant to the given assessment area; it may be distorted by irrelevant factors; it may target things that aren’t readily assessable; or it may be overly subjective.Assessments that set too high a bar, such that most students do poorly, provide little in the way of useful feedback, except to the teacher: namely, about how his or her expectations square with what he or she has actually succeeded in teaching. Also potentially problematic are assessments with the opposite outcome, with most students either getting all, or nearly all, of the answers right. This may indicate highly successful teaching. It may also signal, however, that expectations weren’t sufficiently high and that the assessment’s ceiling was too low. The latter is arguably a problem with many of the statewide tests that have sprung up under No Child Left Behind, especially since these tests are sometimes used, not just to evaluate Rosetta Stone V3 schools and teachers, but to decide who gets admitted to gifted programs and selective high schools. If an assessment’s ceiling is too low, then however accurately it measures the skills of the least capable students, it won’t capture the full range of abilities within the class as a whole, especially those at the other end of the spectrum.Indeed, assessments with low ceilings may even underestimate the relative capacities of the some of the more capable students. A student who finds the assessment too easy may become disengaged from the test items and careless in his or her responses. Low-ceiling, grade-level NCLB-inspired tests do not include harder, above-grade level questions where bright but sloppy testers could make up for points lost elsewhere. Assessments may also go wrong by including things that aren’t being taught. Many assessments, for example, include measurements of handwriting and neatness, but many teachers no longer teach penmanship. Some assessments go even further, including skills that not only aren’t taught, but aren’t even teachable—at least by typically-trained K12 teachers. Common examples are creativity (frequently factored into grades for projects Rosetta Stone Spain Spanish and other open-ended assignments), social confidence and interpersonal skills (implicitly factored into grades for class participation and presentations), and the ability to cooperate with classmates (often factored into grades for group assignments). Consider, for example, the following all-purpose oral presentation rubric, variations of which make repeated appearances around the Internet and inside grade school classrooms:Here we see ratings for “Speaks Clearly” and “Posture and Eye Contact,” with the lowest points going to the student who mumbles or mispronounces, or who slouches and doesn’t look at others. How many classroom teachers spend time teaching and encouraging, or even know how to teach and encourage, things like good posture, eye contact, Steelers Jerseys and clear speech?Still, might there be a reason for K12 schools to assess skills that, perhaps justifiably, they don’t consider it their duty to teach? After all, some of these are real-world skills that employers and admissions committees may care about.

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