How would you start to answer this question? 
Acceptable answers:
Understand-Analyze the question
Write down key words
Write down the question
Write down key details
Which answer choice is completely bogus?

Acceptable answers: J, H, G
What key words are in this problem?

Acceptable Answers:
twice as many as-
strip diagram
total
Solve:

F
How could you check your answer to this question?
Acceptable answers:
Check my model
Check my notes
Check if I answered the correct question
Check if my answer is reasonable
Elminate a bogus answer

Acceptable answers:
F
G
H
Identify key words in this problem:

Acceptable answers:
returned
times as many
equations
total number
two days
Solve:

J
What do you see? What do you know?

Acceptable Answers:
50 books were returned
4 times as many
asking about equations
gives a variable or unknown
asks about total
Eliminate a bogus answer choice

A
B
D
Identify the key words in the problem

Acceptable answers:
Total
half of
same number each day
strip daigram
each
Solve

c
How would you start?

Acceptable answers
Understand-analyze question
Write down what I see
Draw a model or diagram
Eliminate an answer choice

Acceptable answers:
F
G
H
Solve

j