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GBK Geometry

GBK Geometry. Jordan Johnson. Today’s plan. Greeting Hand in Test Analysis / Review Homework Quadrilateral Properties Review Lab Clean-up. Last night’s Homework. Your assignment was: Write up an illustrated report of your findings from the “Triangles to Quadrilaterals” exercise.

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GBK Geometry

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  1. GBK Geometry Jordan Johnson

  2. Today’s plan • Greeting • Hand in Test Analysis / Review Homework • Quadrilateral Properties Review • Lab • Clean-up

  3. Last night’s Homework • Your assignment was: • Write up an illustrated report of your findings from the “Triangles to Quadrilaterals” exercise. • OR, prove one or two conjectures and do a detailed, clean write-up. • Find a partner. Review each other’s work. Ask: • How complete is the work? What’s missing? • Is the work neat? Easy to read? • Are statements correct and convincing? • What’s one thing the author is doing well? • What’s one thing to improve?

  4. Quadrilateral Properties • What interesting properties can a quadrilateral have? • How do those properties relate to the various types of quadrilaterals? • Trapezoid • Isosceles Trapezoid • Parallelogram • Rectangle • Rhombus • Square • Kite • Dart

  5. Properties of Interest • Two pairs of equal opposite sides • Two pairs of equal opposite angles • Diagonals bisect each other • Diagonals are equal • Diagonals are perpendicular • Two right angles • Two equal parallel sides • What properties does a parallelogram have? • What properties guarantee a parallelogram? • If we have a parallelogram, what properties make it a rhombus? Or a rectangle?

  6. Lab • To the computer lab! Work on: • Finishing up your portfolio piece from last night • Proofs / conjectures • Constructions – call me if you want any initialed • Khan Academy problems

  7. Clean-up / Reminders • Pick up all trash / items. • Push in chairs (at front and back tables). • See you tomorrow!

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