Answer to Question 1
His strategies include these:
Through the weekly spelling quizzes, he makes sure that all students master the assigned spelling words.
He rewards group success by providing free time to the group with the highest number of points at the end of each week.
He forms heterogeneous groups, at least with respect to gender.
He talks about appropriate group behaviors.
Answer to Question 2
Joint story-writing might have benefits such as these:
Students can scaffold one another's efforts; for instance, more skilled students can assist those less skilled.
Students can model effective strategies for one another.
Different students might bring different skills to the task. For example, one student may have a particularly creative story line, whereas a second has expertise in punctuation and a third is a careful proofreader.
The combined efforts of the group are likely to yield a more sophisticated story than individual group members can write on their own; as a result, the self-efficacy of all group members may be enhanced.
Three ways that factors affect mortality in response to changes in population density.
Follow the on-screen instructions.
Oligosaccharides and proteins can be linked to form glycoproteins in two ways
Different ways to test hypotheses
Guidelines for Creating Small Plates
Guidelines for Field Triage of Injured Patients, Centers for Disease Control, 2011