Secant Lines; Secant Lines That Meet Inside a Circle

Young mathematicians identify different cases of intersecting secant lines. They then investigate the case where secant lines meet inside a circle.

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CCSS: Designed
Instructional Ideas

  • Use the lesson to introduce the case where secant lines intersect inside a circle
Classroom Considerations

  • The particular case in question—secant lines that meet inside a circle—is sometimes referred to as intersecting chords, rather than intersecting secant lines
  • The lesson refers back to previous lessons on inscribed angles
Pros

  • Lesson notes indicate where to look for mathematical practices
  • Teacher resource provides a set of questions that will guide learning
Cons

  • Discussion includes an activity that is similar to a previous one
Common Core