True or false one way to provide guidance as to let children know what they should do rather than what they shouldn't do

Which shows the best path to find the number of centimeters in 1 yard?

2) based on the information, which is an opinion rather than a fact about immigrants to north america? immigrants

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design