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Mind on Math

Mind on Math. Complete the “Work Together” with a partner. Good Definitions. Geometry Mr. Zampetti Unit 1, Day 7. Properties of Good Definitions. Uses clearly understood terms. Bad Example:. Widget : A thingamabob with 2 extending whosamagigs. Properties of Good Definitions.

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Mind on Math

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  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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