Post on 13-Dec-2015
MODULE 5 LESSON 9Build and write fractions greater
than one whole using unit fractions.
Multiply by 8s Sprint
2 minutes
End
Find the Unknown Part
3/3
2/3 ?1/3
Find the Unknown Part
6/6
1/6 ?5/6
Find the Unknown Part
8/8
3/8 ?5/8
Find the Unknown Part
12/12
7/12 ?5/12
Problem of the DayJulianne’s friendship bracelet has 8 beads. When it broke, the beads fell off. She could only find one bead. To fix her bracelet, what fraction of the beads does she need to buy?
Julianne needs 7/8 of the beads to repair her necklace.
7/8
Concept Development
I bought two oranges for lunch today. I cut them both into fourths to eat.Draw a picture on your white board to show how I cut my two oranges.
Concept DevelopmentIf one orange is one whole, how many copies of ¼ are in one whole?
FOURWhat is our unit?
Fourths
Concept DevelopmentHow many copies of 1 fourth (1/4) are in two whole oranges?
8Count them with me … Are you sure my unit is still fourths?
Yes! The unit is still fourths.One orange is one whole … not two
oranges.So I had TWO whole units for a total
of 8/4!
Concept DevelopmentNow I got hungry and ate one whole orange and 1 piece of the second orange. How many pieces did I eat?5 piecesWhat is our unit?fourths
How much of an orange did I eat for lunch?
✖✖
5/4
Concept Development
5/4
1/41/4
Draw a number bond showing the number of fourths I ate. Show a bond for EACH unit fraction.
1/41/4
1/4
Concept Development
5/4
If you compare the number of pieces I ate to one whole orange. What do you notice?
The number of parts is greater than the number of equal parts in a whole. I ate more than one whole orange!
So today we learned that …When the NUMERATOR (or top number) in a fraction is larger than the DENOMINATOR (or bottom number) we have more than one whole.
Concept Development
5/4
4/41/4
Now draw a new number bond with two parts.One part should show the pieces that make up the whole.The second part should show the pieces that are more than the whole.
Problem SetBuild some awesome fractions!