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Do We Measure Up?

Do We Measure Up?. CAMT 2012 Jill Mowles and Laura Sage. “A measurement is a number that compares the attribute of an object being measured to the same attribute of a unit of measure.” (Van de Walle , 1998). Coffee Talk . Can a rectangle have the same area and perimeter?

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Do We Measure Up?

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  1. Do We Measure Up? CAMT 2012 Jill Mowles and Laura Sage

  2. “A measurement is a number that compares the attribute of an object being measured to the same attribute of a unit of measure.” (Van de Walle, 1998).

  3. Coffee Talk Can a rectangle have the same area and perimeter? How does understanding the difference in their unit affect your answer?

  4. BIG IDEA The connection between 1-dimensional object measure 2-dimensional object measure 3-dimensional object measure and the unit labels used to communicate their measure.

  5. Media Misconceptions Sonic http://www.youtube.com/watch?v=B_58XJZcLRE SpongeBob Square Pants http://www.youtube.com/watch?v=xDJP6yUdNsw

  6. Lets Talk Units… 1- Everybody grab a straw Straw = 1 inch 2-Using your post it… fold over your straw and label “unit” 3- What is the perimeter of your paper? 4- Can you line your units up in different ways and the total number of linear unit change?

  7. Lets Talk SquaredUnits… 1. Using your pipe cleaners connect 4 inch units to create a squared unit. 2. What is the area of your paper? 3. Can you group the squared units in different ways and the area be affected? 1 squares unit (unit²)

  8. Lets Talk Cubic Units 1. Using 12 straw units and your pipe cleaners, make a cubic unit. 2. What kind of questions could you ask with this progression of building the units? 1 cubic unit (unit³)

  9. Take Home Point Connect all the units to show relationships. Connecting Pictorial to verbal and written relationships of units in measurement. Basic understanding of the unit and connection to measurement can effect the development of future Student Expectations.

  10. What do the TEKS tell us? 1- Grab the bag with TEKS. 2- With your group order the TEKS from kinder to 8th grade.

  11. What do the TEKS say… What does the vocabulary tell you about the development of measurement?

  12. Application Facilitate a discussion/journal about the measurement attributes of the items, the unit on the items and the meaning of those units. For example: What does 75 ft² (squared feet) on a box of aluminum foil mean? What if the aluminum foil box said 75 feet long? What does 3 ft³ on a bag of mulch mean?

  13. Application Tiffany is wallpapering her kitchen. She will also put a border around the kitchen. What does Tiffany need to know when purchasing the border? (Perimeter, length, no other special unit name) What does she need to know to determine the amount of wall paper to buy? (length and width of walls, square units)

  14. Application Sean wants to give his sister a sandbox. He needs to place the sandbox in the yard and buy sand to fill the sandbox. a. What does Sean need to know about the border to build around the sandbox? b. What does Sean need to know about the place for the sandbox? c. What does Sean need to know to fill the sandbox?

  15. Third Grade Sample Question

  16. Fourth Grade Sample Question

  17. Fifth Grade Sample Question

  18. Sixth Grade Sample Question The table below shows the base length and area of several triangles. All these triangles have a height of 8 feet. Triangles F A = G A = b2 H A =4b J A = b + 12

  19. Seventh Grade Sample Question Mr. Ellis was trying to find a tablecloth for his rectangular dining table. He knew the area and perimeter of the tabletop. Area = 36 square feet Perimeter = 26 feet Which best represents the width and length of the tabletop? A Width = 2 ft Length = 18 ft B Width = 3 ft Length = 12 ft C Width = 6 ft Length = 6 ft D Width = 4 ft Length = 9 ft

  20. Seventh Grade Sample Question Marilyn was studying the effects of tripling the dimensions of 4 rectangles. The table below shows these effects. Area of Rectangles Based on the information in the table, which statement is true? Tripling the dimensions of any rectangle increases its area by a factor of 3. Tripling the dimensions of any rectangle increases its area by a factor of 6. Tripling the dimensions of any rectangle increases its area by a factor of 9. Tripling the dimensions of any rectangle increases its area by a factor of 12.

  21. Eighth Grade Sample Question

  22. STAAR Geometry

  23. Math Rocks! Perimeter & Area http://www.youtube.com/watch?v=D5jTP-q9TgI http://www.youtube.com/watch?v=Ku1SEFNMYe8&feature=related http://www.youtube.com/watch?v=KwXBMGdSWmI&feature=related

  24. Website with Resources doyoumeasureupcamt2012.wikispaces.com jill.mowles@visd.net lsage@nacisd.org

  25. “Students must understand the attributes of the units and the attribute being measured. For example, attributes of a square unit include length and width or it is described as two dimensional. When measuring the length and width attributes of an object, a square unit is used because the attributes of the unit and object being measured are the same. Encourage students to think of “filling” with cubes, “covering” with squares and “matching” the lines” (Van de Walle, 1998).

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