A．connects
B．equivalent
C．experiences
D．experiments
E．figure
F．gradually
G．heartfelt
H．immediately
I．leave
J．powerful
K．proving
L．reluctant
M．strength
N．suppose
O．tools

A．Students need turn to scientists for help if they had trouble.
B．An introductory physics course was given to physics majors.
C．Students were first taught by the "deliberate practice" approach.
D．A professor taught the same section with the traditional lectures.