module 2 lesson 6

Module 2 Lesson 6 More Division Stories.notebook

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December 03, 2014

Aug 265:55 PM

Lesson 5 Homework ReviewStep 1: Decide on an interpretation: measurement model

Step 2: Draw a model

Step 3: Find the answer: There are eight 3/4 in 6.

Step 4:Choose a unit: pieces of wood

Step 5: Set up a situation: Rachel has a 6-foot piece of wood. She had to cut shelves that were 3/4 foot long. How many shelves could she cut from the 6-foot board?


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Dec 37:52 AM


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Dec 37:59 AM


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December 03, 2014

Dec 97:04 AM

Step 1: Decide on an interpretation: measurement model


Step 3: Find the answer: There are two and half in .

Step 4:Choose a unit: pieces of wire

Step 5: Set up a situation: There are 12 inches in a foot. A piece of wire is 5 inches ( foot) long. Hector needs to cut pieces of wire that are 2 inches ( foot) long. How many can he cut?

5 12

2 12

5 12

1 6

#2.


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December 03, 2014

Aug 265:45 PM

MODULE 2 Arithmetic Operations Including Division of Fractions

Topic A: Dividing Fractions by Fractions Lesson 6: More Division Stories

Student Outcomes

§ Students demonstrate further understanding of division of fractions when they create their own word problems.

§ Students choose a partitive division problem, draw a model, find the answer, choose a unit, and then set up a situation. Further, they practice trying several situations and units before finding which are realistic with given numbers.


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December 03, 2014

Dec 16:39 PM

Partivive Division:(PS)

looking for the size of your group

Measurement Division: (MN)

looking for the number of groups

6 ÷ 2 give counters one at a time to each group until the

counters are gone, and the groups all have the same

amount

make a set of 2 from the 6 counters, and then

continue making sets of 2 until all of the counters

are used


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December 03, 2014

Nov 172:28 PM

§ Partitive division is another interpretation of division problems.

ú We know that when we divide a whole number by a fraction, the quotient will be greater than the whole number we began with (the dividend). This is true regardless of whether we use a partitive approach or a measurement approach.

ú In other cases, we know what the whole is and how many groups we are making and must figure out what size the groups are.


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December 03, 2014

Nov 172:29 PM

Step 1: Decide on an interpretation: partitive division


Step 3: Find the answer

Step 4:Choose a unit

Step 5: Set up a situation

50 ÷ 2 3

Example 1


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December 03, 2014

Dec 97:32 AM

Exercise 1Using the same dividend and divisor, work with a partner to create your own story problem. You may use the same unit, dollars, but your situation must be unique. You could try another unit, such as miles, if you prefer. 50 ÷ 2

3


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December 03, 2014

Nov 172:29 PM

Step 1: Decide on an interpretation: partitive division


Step 3: Find the answer

Step 4:Choose a unit

Step 5: Set up a situation

Example 245 ÷ 3

8


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December 03, 2014

Nov 172:29 PM

Exercise 2Using the same dividend and divisor, work with a partner to create your own story problem. Try a different unit. Remember, spending money gives a “before and after” word problem. If you use dollars, you are looking for a situation where of some greater number is $45. 3

8


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Aug 268:21 PM

Closing

Please take out your exit ticket for Lesson 9, close your binder, and complete the exit ticket. This will be collected.

module 2 lesson 6

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