Deandre Is a New Teacher at a Local Elementary School

question 22

Multiple Choice

Deandre is a new teacher at a local elementary school. He decides to conduct a brief study testing the fifth graders' knowledge of science at the beginning of the school year and at the end of the school year. He will randomly assign students to either a "hands-on" science group that does experiments with each lesson plan or to a "video" science group that assigns videos and online tutorials in support of the science lesson plans. Based on this information which of the following would be considered the independent variable (IV) ?

• A) type of science group
• B) science knowledge at the beginning of the year
• C) science knowledge at the end of the year
• D) age of the fifth graders

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Definitions:

Slopes

The measure of the steepness or incline of a line, often represented as the ratio of the change in the y-value over the change in the x-value.

Horizontal Axis

The x-axis in a graph or chart, typically representing the independent variable or the scale against which variations in the dependent variable are measured.

Line Chart

A type of chart which displays information as a series of data points connected by straight line segments, commonly used to visualize trends over time.

HCH Bond Angle

The measured angle between hydrogen-carbon-hydrogen atoms, typically observed in methane and other organic molecules for structural analysis.