Which one of the following statements best describes current views about the value of instructional websites in expository instruction?
a. The Internet has potential as a learning tool, but students often need teacher scaffolding to reap its benefits.
b. Most computer experts suggest that the dangers (e.g., exposure to racism and other forms of intolerance) far outweigh the benefits of using the Internet for class work.
c. The use of instructional websites appears to be far more effective than classroom lectures as a way to promote learning, especially at the secondary level.
d. The effects are minimal unless all students have access to their own computer terminals.
Question 2
Three of the following statements about computer-based instruction are true. Which one is false?
a. It can collect ongoing data about students' progress in mastering certain topics.
b. It provides a means through which audiovisual materials can easily be incorporated into expository instruction.
c. It can be highly motivating for students.
d. It is one of the best instructional methods for helping students address their need for relatedness.
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What is the current in Figure 16-1(b) if the diode is made of silicon and the polarity of the ...