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Published bySpencer Rodgers Modified over 4 years ago

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Agenda 1)Unit 3 Test is on Friday November 11 2)Lesson: Changing Units in the Customary System – part 2 from last day 3)Tic-Tac-Toe Conversion Style!

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Changing Units in the Customary System

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Strategy When converting from a large unit to a small unit, multiply by the conversion factor. When converting from a small unit to a larger unit, divide by the conversion factor.

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Small - - - - - - - - Large Inch (in) ---------- Foot (ft)-------- Yard (yd) ------- Mile (mi) Ounce (oz) -------------- Pound (lb) -------------Ton (t) Fluid Ounce (fl. oz.) -- Cup (c) -- Pint (pt) -- Quart (qt) -- Gallon (gal)

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Changing Units Determine the direction of the change (L S or S L) Multiply or Divide by the appropriate conversion unit.

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Example 12 gal = ______ qt L S x124(1 gal = 4 qt) 48

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Example 2 40 in = ______ ft S L ÷ 4012 When we divide fractions remember to flip the second one! 11 x 401 112 10 3 3 = 3 1 3 feet

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Activity Time! Materials Needed: Tic-Tac-Toe Game Board (handout) Pencil or Pen Scratch Paper Note: There is no new homework from this lesson. Please refer to the homework from last class.

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