We agree with the idea that teachers must know how hiding identity can influence a learning experience so that they can make intelligent decisions regarding when hiding identity is apt in peer feedback situations (howard, barrett, & frick, 2010). without this knowledge teachers could be creating peer feedback activities that result in feedback being shared that is very different than the type that was desired or expected.

answer is b.shrapnel

speed

explanation:

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."