Understanding fractions as division:

Video on the relationship between multiplying fractions and division: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-dividing-fractions/v/fractions-as-division

Video on understanding division as multiplying fractions: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-dividing-fractions/v/creating-a-fraction-through-division-of-whole-numbers

Video on visualizing the division as multiplying fractions on a numberline: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-dividing-fractions/v/my-share-of-soap-as-a-mixed-number-on-a-number-line

Practice on division as multiplying fractions with hints: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-dividing-fractions/e/understanding-fractions-as-division

Fraction multiplied by a whole number:

Video examples:http://www.educreations.com/lesson/view/fraction-multiplied-by-a-whole-number-whole-number/15382436/?s=6jDzMV&ref=app

Video of a fraction multiplied by a whole number: http://www.educreations.com/lesson/view/fraction-multiplied-by-a-whole-number-not-multiple/15382600/?s=zPhM1F&ref=app

Fractions of a whole number or set word problems: Watch the video on fractions of a set and then click begin and start practicing: http://www.mathplayground.com/NewThinkingBlocks/thinking_blocks_fractions.html

Whole number multiplied by a fraction:

Video on a whole number multiplied by a fraction, conceptual approach: http://www.educreations.com/lesson/view/multiplying-whole-numbers-by-fractions/16286649/?s=EOBnxm&ref=app

Video on a whole number multiplied by a fraction, algorithm approach: http://www.educreations.com/lesson/view/conceptual-to-algorithm-multiplying-whole-by-fract/16287685/?s=I5GgAi&ref=app

Determining if the quotient is bigger or smaller than the factor in the problem

(scaling up or scaling down by multiplying by a fraction):

Video on multiplying a number by a proper fraction: http://www.educreations.com/lesson/view/multiplying-by-a-proper-fraction-using-logic/16282996/?s=0eTywB&ref=app

Video more detailed on multiplying a number by a proper fraction: http://www.educreations.com/lesson/view/multiplying-by-a-proper-fraction-scaling-down/16279977/?s=KrDD8l&ref=app

Video on multiplying a number by an improper fraction: http://www.educreations.com/lesson/view/multiplying-a-number-by-an-improper-fraction-using/16284721/?s=Zn6rU5&ref=app

Video on scaling up or scaling down by multiplying by a fraction: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-multiplying-fractions/v/multiplication-as-scaling

Practice with hints: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-multiplying-fractions/e/fraction-multiplication-as-scaling

Reteach/Practice: http://www.showme.com/sh/?h=rzsHoFU

Fraction multiplied by a fraction:

Video of a fraction multiplied by a fraction, conceptual approach: http://www.educreations.com/lesson/view/fraction-multiplied-by-a-fraction/15382623/?s=PDkT2G&ref=app

Video of a fraction multiplied by a fracton, conceptual approach: http://www.educreations.com/lesson/view/fraction-multiplied-by-a-fraction-2/15382670/?s=evzWh7&ref=app

Multiplying fractions: Once you click on the link, scroll down and click on fractions-rectangle multiplication: http://nlvm.usu.edu/en/nav/category_g_2_t_1.html

Practice writing the expression the model with hints: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-multiplying-fractions/e/understanding-multiplying-fractions-by-fractions

Multiplying mixed numbers:

Video of multiplying mixed numbers by converting to improper fractions first: http://www.educreations.com/lesson/view/multiplying-mixed-numbers-by-converting-to-imprope/17225605/?s=ifGjak&ref=app

Video of multiplying mixed numbers using partial products and a square model: http://www.educreations.com/lesson/view/multiplying-mixed-numbers-using-partial-products-s/17573926/?s=0LAKRc&ref=app

Video of multiplying mixed numbers without converting to improper fractions, more challenging method: http://www.educreations.com/lesson/view/multiplying-mixed-numbers-not-converting-to-improp/17225742/?s=0ZT8Z0&ref=app

Video on the relationship between multiplying fractions and division: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-dividing-fractions/v/fractions-as-division

Video on understanding division as multiplying fractions: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-dividing-fractions/v/creating-a-fraction-through-division-of-whole-numbers

Video on visualizing the division as multiplying fractions on a numberline: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-dividing-fractions/v/my-share-of-soap-as-a-mixed-number-on-a-number-line

Practice on division as multiplying fractions with hints: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-dividing-fractions/e/understanding-fractions-as-division

Fraction multiplied by a whole number:

Video examples:http://www.educreations.com/lesson/view/fraction-multiplied-by-a-whole-number-whole-number/15382436/?s=6jDzMV&ref=app

Video of a fraction multiplied by a whole number: http://www.educreations.com/lesson/view/fraction-multiplied-by-a-whole-number-not-multiple/15382600/?s=zPhM1F&ref=app

Fractions of a whole number or set word problems: Watch the video on fractions of a set and then click begin and start practicing: http://www.mathplayground.com/NewThinkingBlocks/thinking_blocks_fractions.html

Whole number multiplied by a fraction:

Video on a whole number multiplied by a fraction, conceptual approach: http://www.educreations.com/lesson/view/multiplying-whole-numbers-by-fractions/16286649/?s=EOBnxm&ref=app

Video on a whole number multiplied by a fraction, algorithm approach: http://www.educreations.com/lesson/view/conceptual-to-algorithm-multiplying-whole-by-fract/16287685/?s=I5GgAi&ref=app

Determining if the quotient is bigger or smaller than the factor in the problem

(scaling up or scaling down by multiplying by a fraction):

Video on multiplying a number by a proper fraction: http://www.educreations.com/lesson/view/multiplying-by-a-proper-fraction-using-logic/16282996/?s=0eTywB&ref=app

Video more detailed on multiplying a number by a proper fraction: http://www.educreations.com/lesson/view/multiplying-by-a-proper-fraction-scaling-down/16279977/?s=KrDD8l&ref=app

Video on multiplying a number by an improper fraction: http://www.educreations.com/lesson/view/multiplying-a-number-by-an-improper-fraction-using/16284721/?s=Zn6rU5&ref=app

Video on scaling up or scaling down by multiplying by a fraction: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-multiplying-fractions/v/multiplication-as-scaling

Practice with hints: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-multiplying-fractions/e/fraction-multiplication-as-scaling

Reteach/Practice: http://www.showme.com/sh/?h=rzsHoFU

Fraction multiplied by a fraction:

Video of a fraction multiplied by a fraction, conceptual approach: http://www.educreations.com/lesson/view/fraction-multiplied-by-a-fraction/15382623/?s=PDkT2G&ref=app

Video of a fraction multiplied by a fracton, conceptual approach: http://www.educreations.com/lesson/view/fraction-multiplied-by-a-fraction-2/15382670/?s=evzWh7&ref=app

Multiplying fractions: Once you click on the link, scroll down and click on fractions-rectangle multiplication: http://nlvm.usu.edu/en/nav/category_g_2_t_1.html

Practice writing the expression the model with hints: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-multiplying-fractions/e/understanding-multiplying-fractions-by-fractions

Multiplying mixed numbers:

Video of multiplying mixed numbers by converting to improper fractions first: http://www.educreations.com/lesson/view/multiplying-mixed-numbers-by-converting-to-imprope/17225605/?s=ifGjak&ref=app

Video of multiplying mixed numbers using partial products and a square model: http://www.educreations.com/lesson/view/multiplying-mixed-numbers-using-partial-products-s/17573926/?s=0LAKRc&ref=app

Video of multiplying mixed numbers without converting to improper fractions, more challenging method: http://www.educreations.com/lesson/view/multiplying-mixed-numbers-not-converting-to-improp/17225742/?s=0ZT8Z0&ref=app