Working memory is important when people are trying to solve an algebra word problem because
a. you need to keep the important parts of the problem in your mind while working on the problem.
b. these problems usually involve objects that have different shapes and sizes, so it's naturally a difficult task.
c. these problems do not use the phonological loop, so it's especially difficult to discover the solution.
d. people often miss the obvious solution, and they therefore have to try again.
Question 2
An important potential problem with using symbols to represent a problem is that
a. people typically use at least twice as many symbols as they need.
b. people usually construct a hierarchical tree diagram, even though they intended to use symbols.
c. people insert the symbols into the wrong matrix.
d. people have trouble translating words into the appropriate symbols.
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