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• How is a stem and leaf constructed? Read the numbers.What does the stem represent?What is the smallest number in the plot?What is the largest number in the plot?What might the numbers in this plot represent?
• How is this one different?
• How is this one different?

2. 2. Today’s Lesson <br />Title new page: Quadrilaterals<br />Date: 10/13/09<br />Get a calculator!<br />
3. 3. Review – Stem & Leaf<br />
4. 4. Yesterday’s Assignment <br />On overhead<br />Given 28 squares for the perimeter, make a garden with the biggest area.<br />
5. 5. Essential Question <br />How can I identify and describe quadrilaterials?<br />
6. 6. Quadrilaterals <br />Sketch the ones you see in your notes.<br />We’ll talk about them later.<br />
13. 13. Quadrilateral<br />What do they all have in common?<br />What differences did you see?<br />
14. 14. Square: <br />
15. 15. Square:<br />Sides?<br />4 equal<br />Both sets parallel<br />Angles?<br />All are 90o<br />
16. 16. Rhombus: <br />
17. 17. Rhombus:<br />Sides?<br />4 equal<br />Both sets parallel<br />Angles?<br />2 obtuse, 2 acute<br />
18. 18. Rectangle: <br />
19. 19. Rhombus:<br />Sides?<br />Opposites equal<br />Both sets parallel<br />Angles?<br />All are 90o<br />
20. 20. Parallelogram: <br />
21. 21. Parallelogram:<br />Sides?<br />Opposites equal<br />Both sets parallel<br />Angles?<br />2 obtuse, 2 acute<br />
22. 22. Trapezoid: <br />
23. 23. Trapezoid:<br />Sides?<br />One set parallel<br />Angles?<br />2 obtuse, 2 acute (in this one)<br />
24. 24. Trapezoid: <br />
25. 25. Angle Measures:<br />What do you think the total angle measurement is for a quadrilateral?<br />
26. 26. Trapezoid: <br />
27. 27. Essential Question <br />How can I identify and describe quadrilaterals by their sides and angles?<br />
28. 28. Assignment:<br />Sorting quadrilaterals.<br />Use chart<br />Identify each shape as one of the quadrilaterals or just quadrilateral<br />
29. 29. More Problems:<br />Quiz on non-calculator items.<br />Model drawing if time.<br />