Fractions as Division November 24, 2014

Goal: I will relate fractions as division to fractions of a set!

Agenda Application Problem Divide Whole Numbers Fractions as Division Whole Class: Fractions as Division Problem Set Task A star… A wish…

Application Problem Olivia is half the age of her brother, Adam. Olivia’s sister, Ava is twice as old as Adam. Adam is 4 years old. How old is each sibling? Use tape diagrams to show your thinking.

Divide Whole Numbers 1÷2= 1/2 29÷6= 29/6= 4 5/6 13÷5= 13/5= 2 3/5 5÷4= 5/4= 1 1/4 3÷10= 3/10

Fractions as Division 4÷2= 4/2= 2 6÷4= 6/4= 3/2= 1.5 3÷4= ¾=.75 2÷10= 2/10=.2 6 thirds= 6/3= 2 12 fourths= 12/4= 3

1/3 of 6= Make an array with 6 counters. Turn the counters to the red side and split the 6 counters into three equal parts. What is the division sentence for what you just did?

1/3 of 6= If I wanted to show 1 third of this set, how many counters should I turn over to yellow? – Turn and talk – This means that 1/3 of 6 is equal to ___2______

What is 2/3 of 6 4

¼ of 12= 3

Mrs. Smith has 8 apples. She wants to give ¾ of the apples to her students. How many apples will her students get? ¾ x 8/1 8x3= 24 4x1= 4 24/4= 6 6 apples

In a class of 24 students, 5/6 are boys. How many boys are in the class? How many girls? 24/1 x 5/6 24x5= 120 6x1= 6 120/6= 20 boys 1/5 x 24 = 4 girls

Problem Set This is an independent assignment. You will have 10 minutes to complete the problem set. Do your best and turn it in when the timer goes off.

New Flooring task Spokes person Time keeper Responsibility Encourager Discussion leader

A star… A wish Be specific: Write one thing that you are doing really well with. Write one thing that you are struggling with.