The energies of which of the following are aimed at discharging tensions related to sex and aggression?

Your text has a box entitled "Educational Applications of Sociocultural Theories" which discusses a jigsaw approach involving

a. the creation of a community of learners for 6- to 12-year olds b. high school students working on jigsaw puzzles from around the world together c. high school students working on creating their own jigsaw puzzles as part of teams on people from different ethnic backgrounds d. video games used to teach 13- to 19-year olds about the harm caused by stereotypes

About 95 percent of scores fall between ________ standard deviation(s) above and below the mean in a normal distribution

a. four b. one c. three d. two