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Student Voice: The Newspaper's Model Check

Students fit and evaluate straight-line models for a school newspaper's student-opinion survey, using scatter plots and distances from lines.

Grade 8MathInteractive · Printable

Aligned to8.SP.A.2

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What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
13 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 8
Subject: Math
Question types: Fill in the blank, Multiple choice, Circle the answer, Short answer, Drawing

About this worksheet

What students practice

Students draw an informal straight-line model through the center of a scatter plot's trend.
Students judge a line's fit using how closely the observations follow it.
Students distinguish linear patterns, curved patterns, and nearly level patterns.

How to use

Have students examine the survey plots before answering. Use the final section to discuss when a straight line is useful and why graph appearance alone can mislead.

Curriculum

Common Core standard covered

8.SP.A.2

Know straight lines model linear trends in scatter plots, fit a line informally, and judge the fit by how close the points are.

Preview

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Student Voice: The Newspaper's Model Check

Fit straight lines and check what they say about survey responses.

Quiet Study Spaces

The school newspaper surveyed students. Each dot represents one student's pair of responses. Ratings run from 0 (lowest) to 10 (highest). The horizontal axis rates the importance of quiet study; the vertical axis rates support for a quiet room. Use the plot for Questions 1–4.