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Scatter plots: 8th grade math

Scatter plots, line of best fit, two-way tables. A free 8th grade lesson plan, a question set with answers and a printable sheet with its key. Copy it and make it yours.

Lesson plan

Goal

  • Students can do this: scatter plots, line of best fit, two-way tables.

Teach (10 min)

  • A scatter plot shows two things at once. If the points slope up to the right, that is a positive association.
  • If they slope down, it is negative. If they are scattered with no pattern, there is no association.
  • Work one example on the board while students say each step aloud, then do one together.

Practise (15 min)

  • Students work the printable sheet in pairs, then alone.
  • Or practise it as a game with no sign-up: https://peabody.kids/math/assoc.pattern?lesson=8-assoc-pattern-1&at=8

Exit ticket (5 min)

  • Use the first three questions on the printable sheet as a slip.

Printable sheet

Name: ____________________   Date: ____________

Scatter plots (8th grade)

  1. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Hours of practiceFree throws made
  2. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Hours of practiceFree throws made
  3. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Days since the sale beganToys left in the shop
  4. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Height (inches)Favorite number
  5. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Temperature (°C)Cups of lemonade sold
  6. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Shoe sizeNumber of pets
  7. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Hours of TV watchedTest score
  8. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Height (inches)Favorite number
  9. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Shoe sizeNumber of pets
  10. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Minutes of exerciseCalories burned
  11. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Hours of sleepLetters in first name
  12. Does the scatter plot show a positive association, a negative association, or no association?
    02468100246810Height (inches)Favorite number
Key
  1. Positive association
  2. Positive association
  3. Negative association
  4. No association
  5. Positive association
  6. No association
  7. Negative association
  8. No association
  9. No association
  10. Positive association
  11. No association
  12. No association

Written by Peabody from its own skill pages. Free, no ads, no sign-in. Children can practise this on Peabody. More from teachers: teacher-shared resources.