Dividing Mixed Numbers: Key Concepts and Practice

In this 6th grade math lesson, Mr. Nerlich teaches students how to divide mixed numbers. The lesson builds on previous knowledge of dividing fractions and introduces two methods: using models and the standard algorithm. The importance of labeling in math problems is emphasized to avoid mistakes. Students are encouraged to practice using both methods to find the one that suits them best.

What is the first step in dividing mixed numbers?

• Subtract the divisor from the mixed number

• Convert the mixed number to a fraction

• Multiply the mixed number by the divisor

• Add the mixed number to the divisor

What is the reciprocal of a fraction?

• The fraction with the numerator and denominator swapped

• The fraction itself

• The fraction divided by 2

• The fraction multiplied by 2

In the example with Bob making sushi rolls, how many fourths are in two and one-half?

• 9

• 8

• 10

• 11

What is the importance of using models in solving problems?

• They make the problem more complex

• They are faster than other methods

• They provide a visual representation and can simplify the problem

• They are required by the teacher

How many sushi rolls can Bob make with two and one-half cups of rice if each roll requires one-fourth cup of rice?

• 8

• 9

• 11

• 10

Why is it important to label your answers and information in word problems?

• To make the problem look neat

• To avoid confusion and remember what the information means

• To impress the teacher

• To make the problem longer

What should you do if you encounter information in a problem that is not needed?

• Label it as 'do not need'

• Use it anyway

• Ignore it

• Ask the teacher

What does the acronym 'MAD' stand for in the context of converting mixed numbers to fractions?

• Multiply, Add, Divide

• Multiply, Add, Deduct

• Multiply, Average, Divide

• Multiply, Add, Double

In the example with 17 and one-half divided by one and two-fifths, what is the first step?

• Subtract the mixed numbers

• Add the mixed numbers

• Convert the mixed numbers to improper fractions

• Multiply the mixed numbers

What is the result of 35 over 2 divided by 7 over 5?

• 10

• 12 and one-half

• 15

• 25 over 2