Chances are that at some point in your educational career you have wished that a teacher would clarify or explain an assignment more fully, and perhaps give it a clearer structure or organization. Students' desire for clarity is especially common with assignments that are by nature open-ended, such as long essays, large projects, or creative works. Simply being told to “write an essay critiquing the novel”, for example, leaves more room for uncertainty (and worry) than being given guidelines about what questions the essay should address, what topics or parts it should have, and what its length or style should be (Chesebro, 2003). As you might suspect, some students desire clarity more than others, and improve their performance especially much when provided with plenty of structure and clarity. Students with certain kinds of learning difficulties, in particular, often learn effectively and stay on task only if provided with somewhat explicit, detailed instructions about the tasks expected of them (Marks, et al., 2003).
As a teacher, the challenge is to accommodate students' need for clarity without making guidance so specific or detailed that students do little thinking for themselves. As a (ridiculously extreme) example, consider a teacher gives “clear” instructions for an essay by announcing not only exactly which articles to read and cite in the essay and which topics or issues to cover, but even requires specific wording of sentences in their essays. This much specificity may reduce students' uncertainties and make the teacher's task of evaluating the essays relatively straightforward and easy. But it also reduces or even eliminates the educational value of the assignment”assuming, of course, that its purpose is to get students to think for themselves.
Ideally, then, structure should be moderate rather than extreme. There should be just enough to give students some sense of direction and to stimulate more accomplishment than if they worked with less structure or guidance. This ideal is an application of Vygotsky's idea of the zone of proximal development that we discussed in Section 2.1: a place (figuratively speaking) where students get more done with help than without it. The ideal amount of guidancethe “location” of the zone of proximal development”varies with the assignment and the student, and it (hopefully) decreases over time for all students. One student may need more guidance to do his or her best in math, but less guidance in order to write her or his best essay. Another student may need the reverse. But if all goes well, both students may need less at the end of the year than at the beginning.
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