142. Use the information below to answer the question that follow.
A middle school ESL teacher is beginning a multidisciplinary thematic unit about tropical rain forests with developing-level English language learners.
The teacher has decorated the classroom with realia related to a rain forest, such as artificial tropical trees and pictures of tropical animals, and has labeled objects with content-area vocabulary related to the rain forest. The teacher wears safari attire and plays a recording of sounds from a rain forest. This use of realia best demonstrates the teacher's understanding of how to: