Dividing Segments Proportionately

Fractions, ratios, and proportions: what do they have to do with segments? Scholars discover the midpoint formula through coordinate geometry. Next, they expand on the formula to apply it to dividing the segment into different ratios and proportions. 

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CCSS: Designed
Instructional Ideas

  • Have learners divide segments into the fraction desired; find the point that represents the section desired
Classroom Considerations

  • Needs graph paper for each pupil
  • Review fractions depending on the needs of your class
  • The lesson is the 12th in a series of 15
Pros

  • Saves formulas for the conclusion of the task to encourage looking for patterns and discovery
  • Includes a problem set for independent practice with an answer key
Cons

  • None
Common Core