lesson #17 - dividing fractions by whole numbers

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  • 8/10/2019 Lesson #17 - Dividing Fractions by Whole Numbers

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    The Number SystemDay 1

    VAN SICLEN COMMUNITY MIDDLE SCHOOL

    MR. E GRADE 6 MATHEMATICS

    CLASS 602/603/604/605

    OCTOBER 26, 2014

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    www.tinyurl.com/vscmath55

    TODAYS LESSON

    LINK!

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    Do Now5 minutes (Choose tw1) For every 2 apples Kim eats, Dana eats 5oranges. If Dana ate 30 oranges, how manyapples did Kim eat?

    2)

    0students in Mr. Harpers clasWhat percent are boys? What pegirls?

    3) What is 10% of 300?

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    Lesson OverviewWe have completed Unit 1! You will seepercent questions, ratio questions, and unitrate questions in some of the Do Nows to helpyou remember and practice them! Dontforget them!

    We are going to go back to fractdivision.

    Today we will practice dividing fwhole numbers by using a model

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    What do fractions mean?4 minDraw a model of the fraction on your fraction card

    Describe what your fraction means

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    What do fractions mean?Fractions show the numerator being divided by the denominator

    For example:

    = 4 (8 2 = 4)

    Fractions show a part (the numerator), being divided by the whole (denominator)

    Remember that fractions are numbers too, and can be divided, added, subtracted

    multiplied!!

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    DividingFractions by

    WholeNumbers

    Mr. E has

    pack of chocolate. He wants to share it e

    college classmates. How can this question be mode

    Question #1What is this question asking us to d

    - This question is asking us to

    ___________________________________________

    Question #2 - How much will each friend be given

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    DividingFractions byWhole

    Numbers5minutes

    Mr. E has 6 friends. Looking at each of the models,an equal amount of chocolate to each person? Is th

    How much would each piece represent?

    1

    4

    3

    4

    2

    4

    1

    4

    2

    4

    3

    4

    1

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    DividingFractions by

    WholeNumbers

    Each piece would represent

    In other words,

    o

    The size of each part (

    ) is less than the original am

    1

    8

    1

    8

    2

    8

    3

    8

    4

    8

    5

    8

    6

    8

    7

    8

    8

    8

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    DividingFractions byWhole

    Numbers5minutes

    Imagine that you are making a strawberry cupcakes

    cup of frosting that you need to share between thre

    Question #1How can we write this as a division

    Part #2Draw a model of two-fifths.

    How can we show that we are dividing

    into three

    What fraction does this part represent?

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    DividingFractions byWhole

    Numbers3minutes

    Rewrite the following question as multiplication. M

    Question #2:

    3

    We can rewrite this as multiplication as:

    of

    In this question, we need to divide

    in to _______

    What fraction does this part represent?

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    DividingFractions byWhole

    Numbers4minutes

    Rewrite the following question as multiplication. M

    Question #3:

    4

    We can rewrite this as multiplication as: of

    In this question, we need to divide in to ______

    What fraction does this part represent?

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    DividingFractions byWhole

    Numbers4minutes

    Rewrite the following question as multiplication. M

    Question #3:

    4

    We can rewrite this as multiplication as: of

    In this question, we need to divide in to ______

    What fraction does this part represent?

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    DividingFractions byWhole

    Numbers4minutes

    Rewrite the following question as multiplication. M

    Question #3:

    4

    We can rewrite this as multiplication as: of

    In this question, we need to divide in to ______

    What fraction does this part represent?

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    What did we learn?4 minutesWhen a fraction is divided by a whole number, what do you notice about it when co

    the original fraction?

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    Homework!Due October 28, 2Rewrite the following questions as multiplication. Model the answer. Attach a loose-le

    need extra room to draw your models!

    Question #1:

    5

    Question #2:

    2

    Question #3:

    3

    Question #4:

    2