两个正整数的最大公因数是6,这两个数的和是48,则这两个数是。 答案:【1】6和42或18和30Going to school means learning
new skills and facts in different subjects. Teachers teach and students learn,
and many scientists are interested in finding ways to improve both teaching and
learning processes.
Sian Beilock and
Susan Leving, two psychologists at the University of Chicago, are trying to
learn about learning. In a new study about the way kids learn math in
elementary school, Beilock and Levine found a surprising relationship between
what female teachers think and what female students learn: If a female teacher
is uncomfortable with her own math skills, then her female students are more
likely to believe that boys are better than girls at math. “If these girls keep getting math-anxious female teachers in
later grades, it may create a snowball effect on their math achievement,” Levine told Science News. The study suggests that if these
girls grow up believing that boys are better at math than girls are, then these
girls may not do as well as they would have if they were more confident.
Just as students
find certain subjects to be difficult, teachers can find certain subjects to be
difficult to learn—and teach. The subject of math
can be particularly difficult for everyone.
The new study
involved 65 girls, 52 boys and 17 first-and second-grade teachers in elementary
schools in the Midwest. The students took math achievement tests at the
beginning and end of the school year, and the researchers compared the scores.
The researchers also
gave the students tests to tell whether the students believed a math superstar
had to be a boy. Then the researchers turned to the teachers: To find out which
teachers were anxious about math, the researchers asked the teachers how they
felt at times when they came across math, such as when reading a sales receipt.
A teacher who got nervous looking at the numbers on a sales receipt, for
example, was probably anxious about math.
Boys, on average,
were unaffected by a teacher’s anxiety. On average, girls with
math-anxious teachers scored lower on the end-of-the-year math tests than other
girls in the study did. Plus, on the test showing whether someone thought a
math superstar had to be a boy, 20 girls showed feeling that boys would be
better at math—and all of these girls had been
taught by female teachers with math anxiety.
According to surveys
done before this one, college students who want to become elementary school
teachers have the highest levels of anxiety about math. Plus, nine of every 10
elementary teachers are women, Levine said.
1.Sian Beilock and Susan Levine carried out
the new research in order to ___________.
A. know the effects of
teaching on learning B. study students’ ways of learning math
C. prove women teachers are unfit
to teach math D. find better teaching methods for teachers
2.The underlined part in paragraph 2 most
probably means that girls may ___________.
A. end up learning math anxiety
from their teachers B. study the ways their female
teachers behave
C. have an influence on their
math-anxious female teachers
D. gain unexpected
achievement in such subjects as math
3. In the study, what were the teachers
required to do?
A. Prepare two math
achievement tests for the students B. Tell their feelings
about math problems
C. Answer whether a math
superstar had to be a boy D. Compare the
students’ scores after the math tests
4.What is the finding of the new study?
A. No male students were affected
by their teachers’ anxiety
B. Almost all the girls got lower
scores in the tests than the boys
C. About 30% of the girls thought
boys are better at math than girls
D. Girls with math-anxious
teachers all failed in the math tests
5.Which of the following is TRUE according to
the text?
A. 117 students and
teachers took part in the new study
B. The researchers felt
surprised at the findings of their study
C. Beilock and Levine are
interested in teaching math
D.
Men teachers are better at teaching math than women teachers