Many teachers give students “busy” work that they can complete on their own, which allows the teacher to work individually or with small groups during class. this “busy” work falls into the limit of the zone of proximal development.

a. formula: f=ma or f/m=a

10,000n/1,267kg≈7.9m/

b. formula: a= and s=d/t

speed= 394.6/15

s=26.3m/s

a=

a=1.75m/

c. 7.9-1.75=difference of 6.15m/

d. the force that most likely caused this difference is friction forces

answer; when one group has an extremely high score at pretest;

was the answer correct?

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