Thư viện tri thức trực tuyến
Kho tài liệu với 50,000+ tài liệu học thuật
© 2023 Siêu thị PDF - Kho tài liệu học thuật hàng đầu Việt Nam

Success step english 9 docx
Nội dung xem thử
Mô tả chi tiết
L Stands for Live
Living the problem means pretending you’re actually
in the situation described in the word problem. To do
this effectively, make up details concerning the events
and the people in the problem as if you were part of
the picture. This process can be done as you are reading the problem and should take only a few seconds.
V Stands for View
View the problem with different numbers while keeping the relationships between the numbers the same.
Use the simplest numbers you can think of. If a problem asked how long it would take a rocket to go
1,300,000 miles at 650 MPH, change the numbers to
300 miles at 30 MPH. Solve the simple problem, and
then solve the problem with the larger numbers the
same way.
E Stands for Eliminate
Eliminate answers you know are wrong. You may also
spend a short time checking your answer if there is
time.
Sample Question
Solve this problem using the SOLVE steps described
above.
1. There are 651 children in a school. The ratio of
boys to girls is 4:3. How many boys are there in
the school?
a. 40
b. 325
c. 372
d. 400
e. 468
Answer
1. Subject Experience: You know that 4 and 3 are
only one apart and 4 is more. You can conclude
from this that boys are a little over half the school
population. Following up on that, you can cut 651
in half and eliminate any answers that are under
half. Furthermore, since there are three numbers
in the problem and two are paired in a ratio, you
can conclude that this is a ratio problem. Then
you can think about what methods you used for
ratio problems in the past.
2. Organize: The clue word total means to add. In
the context in which it is used, it must mean girls
plus boys equals 651. Also, since boys is written
before girls, the ratio should be written Boys:Girls.
3. Live: Picture a group of three girls and four boys.
Now picture more of these groups, so many that
the total would equal 651.
4. View: If there were only 4 boys and 3 girls in the
school, there would still be a ratio of 4 to 3. Think
of other numbers that have a ratio of 4:3, like 40
and 30. If there were 40 boys and 30 girls, there
would be 70 students in total, so the answer has to
be more than 40 boys. Move on to 400 boys and
300 girls—700 total students. Since the total in the
problem is 651, 700 is too large, but it is close, so
HOT TIP
Don’t try to keep a formula in your head as you solve the
problem. Although writing does take time and effort, jotting down a formula is well worth it for three reasons: 1) A
formula on paper will clear your head to work with the
numbers; 2) You will have a visual image of the formula
you can refer to and plug numbers into; 3) The formula will
help you see exactly what operations you will need to perform to solve the problem.
–CBEST MINI-COURSE–
128