Federer Is Trying to Implement a Scaffolding Style into His

Multiple Choice

Federer is trying to implement a scaffolding style into his teaching of tennis to Venus, who is having difficulty, and to Serena, who is doing very well. To do this, Federer must

A) be sure to praise both students for their effort, not for their successes.
B) discourage private speech in both students.
C) give Venus more assistance and give Serena less assistance.
D) promote cooperation rather than competition between the two students.