Aim: How do we name parts of a fraction and what do they represent ? October 15, 2009 Math 201 Objective: Students will develop an understanding of fractions as parts of a whole unit and as parts of a collection. Aim: How do we name parts of a fraction and what do they represent ? NYS Mathematics Standards: Prerequisites 3.N.10 Prior Knowledge: When you have a pizza and share it among 8 friends, how many equal-sized slices do you cut? What operation of arithmetic does this represent?

Denominator number of parts that make a whole Mini-lesson: In a fraction, the number above the fraction bar is called the numerator. The number below the fraction bar is called the denominator. A fraction names a part of a whole. Numerator = number of parts being used Denominator number of parts that make a whole

Horizontal Vertical Fractional

Guided Practice: Find -50 divided by -5. Find the absolute value for each. |-50| = 50 |-5| = 5 Divide the absolute values of the numbers. 50 divdied by 5 = 10 The signs are the same. The quotient will be positive. Write the quotient with the sign. 10

Find the quotient:

Independent Practice: Assessment: Is this correct? Why or why not? Negative thirty two divided by negative four equals negative eight Homework: 8 – 5 “Homework Practice” worksheet