NF Standard #4 (4.NF.4)

4. Apply and extend previous understandings of multiplication to multiply a fraction by a whole number.

a. Understand a fraction a/as a multiple of 1/bFor example, use a visual fraction model to represent 5/4 as the product 5 × (1/4), recording the conclusion by the equation 5/4 = 5 × (1/4).

b. Understand a multiple of a/as a multiple of 1/b, and use this understanding to multiply a fraction by a whole number. For example, use a visual fraction model to express 3 × (2/5) as 6 × (1/5), recognizing this product as 6/5. (In general, n × (a/b) = (n × a)/b.)

c. Solve word problems involving multiplication of a fraction by a whole number, e.g., by using visual fraction models and equations to represent the problem. For example, if each person at a party will eat 3/8 of a pound of roast beef, and there will be 5 people at the party, how many pounds of roast beef will be needed? Between what two whole numbers does your answer lie?

WEB RESOURCES

Fraction Clipart – Teachers and students can use these images to discuss fractions.

Khan Academy – Fractions

Visual Fractions – This website provides resources / examples from identifying to dividing fractions.

DOCUMENT RESOURCES

MOBILE RESOURCES

Khan Academy (iOS – free – iPhone/iPad)

IWB RESOURCES