One week before a geography teacher begins the next unit in the textbook, her co-teacher conducts an activity where he provides each student with half an index card with part of a word on it. Students have to stand and find the student who has the other half of their card. Then they work with their partner to find the definition for the vocabulary word on their card and draw a picture of what the word represents. The purpose of this lesson is to A. give students a break from the textbook.
B. preteach vocabulary and thus improve students' ability to read and understand the next chapter.
C. show that all geography-related vocabulary words make great pictures.
D. give the co-teacher a chance to conduct a lesson.