If you're not right-handed, are you wrong-handed? Young statisticians calculate the percentage of left-handed people using a given data set in the assessment task. They plot data on a scatter plot and consider how the line of best fit relates to the data.

Concepts

percents, proportional reasoning, ratios, scatter plots, line of best fit, sampling

Show More Show Less

Additional Tags

math

Show More Show Less

Instructional Ideas

• Have pupils include a point on the scatter plot to represent their own class

Classroom Considerations

• Task requires graph paper
• Learners need to have experience with scatter plots in addition to ratios, percents, and proportional reasoning

Pros

• Simple context makes the material easy to understand
• Teacher resource includes answer key and simple rubric (partial vs. full credit)

Cons

• The way the task prompts individuals to find a trend line is not how it would be taught in a classroom situation