Olivia Understands Why 3/5 and 9/15 Are Equivalent Fractions

question 65

Multiple Choice

Olivia understands why 3/5 and 9/15 are equivalent fractions. Based on this information,Olivia is reasoning in a manner consistent with Piaget's ________ stage of development.

• A)concrete operations
• B)preoperational
• C)formal operations
• D)sensorimotor

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Definitions:

Protein Molecules

Large, complex molecules made of amino acids that perform a vast array of functions in the body, including catalyzing metabolic reactions and supporting cell structure.

Magnifying Capacity

The ability of an optical instrument, such as a microscope or telescope, to make an object appear larger or closer than it actually is.

Phase-Contrast

A microscopy technique that converts phase shifts in light passing through a transparent specimen to brightness changes in the image.

Confocal Fluorescence

A microscopy technique that uses laser light to illuminate a fluorescently labeled sample at specific depths, generating sharp images of structures within cells and tissues.