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Mind on Math

Enhance your geometry knowledge by working together to develop good, precise definitions. Learn key properties to create clear and concise terms. Explore concepts like midpoint, angle bisector, and perpendicular lines. Improve your understanding with well-crafted definitions that avoid ambiguity. Perfect your geometry skills with a partner in this informative unit.

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Mind on Math

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Presentation Transcript

  1. Mind on Math • Complete the “Work Together” with a partner.

  2. Good Definitions Geometry Mr. Zampetti Unit 1, Day 7

  3. Properties of Good Definitions • Uses clearly understood terms.

  4. Bad Example: Widget: A thingamabob with 2 extending whosamagigs.

  5. Properties of Good Definitions • Uses clearly understood terms. • Precise. Avoids words such as “large,” “sort of,” and “some”.

  6. Bad Example: • Carp: A big fish.

  7. Properties of Good Definitions • Uses clearly understood terms. • Precise. Avoids words such as “large,” “sort of,” and “some”. • States what the term IS, not what the term IS NOT.

  8. Bad Example: Big: the opposite of small.

  9. Properties of Good Definitions • Uses clearly understood terms. • Precise. Avoids words such as “large,” “sort of,” and “some”. • States what the term IS, not what the term IS NOT. • Is reversible.

  10. Great Example: Right angle: an angle that measures 90º. Also, an angle that measures 90º is a right angle.

  11. Definition Midpoint: the point that divides a line segment into two congruent segments.

  12. Definition Segment Bisector: a segment, line, or ray that divides a line segment into two congruent segments.

  13. Definition Perpendicular Lines: two lines that intersect to form right angles. ()

  14. Definition Perpendicular Bisector of a segment: a line, segment or ray that is perpendicular to a segment at its midpoint.

  15. Definition Angle Bisector: a ray that divides an angle into two congruent angles.

  16. Practice

  17. Practice

  18. Homework Homework Packet: Good Definitions.

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