When 10-Year-Old Meg Tackles a Word Problem That Requires Her

question 53

Multiple Choice

When 10-year-old Meg tackles a word problem that requires her to add the numbers 29 and 56, she arrives at the solution "715." Based on her error, you might reasonably guess that Meg:

• A) Has not yet acquired proportional reasoning ability
• B) Does not engage in metacognitive oversight of her problem solving
• C) Has not yet learned basic addition and subtraction facts
• D) Is thinking abstractly about a situation that does not call for abstract thought

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Definitions:

Sandstone Lens

A body of sandstone that is thicker in the middle and tapers towards the edges, often sandwiched between other rock layers.

Petroleum

A general term for naturally occurring hydrocarbons, whether liquid, gaseous, or solid.

Thick Shale

Refers to a substantial accumulation of shale rock, which is a fine-grained sedimentary rock formed from clay and silt.

Limestone

A sedimentary rock mainly composed of calcium carbonate, formed either by direct precipitation from marine water or through the accumulation of shell, coral, and algal debris.