Hershey - Estimating Fractional Amounts
Transcript of Hershey - Estimating Fractional Amounts
HERSHEY’S IS MY GAME!!
CHOCOLATE OBJECTIVES
• We will estimate to find fractional amounts of a Hershey’s bar.
• We will find a fraction of a set of Hershey’s bar pieces.
• We will find fractions that are equal using Hershey’s bar pieces.
• We will find the cost of each fraction of the Hershey’s bar.
K-W-L• K• I know that there are 12/12 in a Hershey’s bar.• I know that half of the box is cut up.• I know that Seth has the most.• I know the fraction is 6/6.• I know Alexis has four pieces of candy.• I know that there are 12 pieces.• I know that Seth has half of the Hershey’s bar.• I know half of the Hershey’s bar is missing.• I know the square is a fraction.
K-W-L• W
• I want to know why some names have larger parts than the other ones.
• I want to know what it is all about.• I want to know how much pieces there
are going to be.• I want to know if we are going to divide
the pieces up.• I want to know if we are going to eat it
when we are done.
K-W-L• “W” Continued…
• I want to know if they will have the same amount if Seth shares with Bethany.
• I want to know what the squares represent.• I want to know how Seth can share his
whole.• I want to know what are the seven pieces.• I want to know if the right side is the same
as the other.• I want to know why there aren’t seven
different names.
We’ll handle this Hershey’s lesson in small bites!!
Quit around.
I can handle the WHOLE lesson!
ting
Yes!! Hershey’s Is My Game.
Seth, Alexis, and Bethany shared a plain Hershey’s bar. The picture below shows the fraction of the Hershey’s bar each student ate.
Seth
Alexis Alexis
Alexis Alexis
Bethany Bethany
Seth ate 6/12(1/2) of the Hershey’s bar. Seth paid $6 for the share he ate.
Write a fraction that tells how much of the WHOLE Hershey’s bar Seth ate.
a.
6/12
Six - twelfths
b. Write a fraction to tell how much of the WHOLE Hershey’s bar Alexis ate?
Four - twelfths
4/12
Alexis ate 4/12(1/3) of the Hershey’s bar.
Alexis paid $4 for the share she ate.
c. What fraction of the WHOLE Hershey’s bar did Bethany eat?
Two -twelfths2/12
Bethany ate 2/12(1/6) of the Hershey’s bar.
Bethany paid $2 for the share she ate.
Are we done yet?
There’s
No way!
to do!much
K-W-L
• L• Hershey’s bar (twelfths)
• A WHOLE Hershey’s bar has twelve fractional parts.
• 12/12 = 1 12/12 = $12
• 6/12 = 1/2 1/2 of $12 = $6
• 4/12 = 1/3 1/3 of $12 = $4
• 2/12 = 1/6 1/6 of $12 = $2
There it is!
I hope you enjoyed our lesson.
Give your BRAIN some
Kisses Kisses
You did a great job!
We really!!
Name ______________________________ Date ___________________________
Yes!!! Hershey’s Is My Game Seth, Alexis, and Bethany shared a plain Hershey’s bar. The picture below shows the parts of the Hershey’s bar each student ate.
a. Write a fraction that tells how much of the WHOLE Hershey’s bar Seth ate. _________
b. Write a fraction to tell how much of the WHOLE Hershey’s bar Alexis ate. ________ Use pictures or words to show how you found your answer.
c. What fraction of the WHOLE Hershey’s bar did Bethany eat? ________ Use pictures or words to show how you found your answer. d. The Hershey’s bar cost $12. The students decided to share the cost of the candy
bar based on how much each had eaten. How much money should EACH child pay? Explain or show how you found your answer.
Name ____________________________ Date ____________________________ YES! Hershey’s Is My Game a. b. c. d.
YES! HERSHEY’S IS MY GAME Rubric
Score Description 4 8 - 9 points 3 6 - 7 points 2 4 - 5 points 1 1 – 3 points
OR Response shows minimal understanding of estimating fractional amounts, finding a fraction of a set, and identifying equivalent fractions.
0 0 points (Response is incorrect or contains some correct work that is irrelevant to the skill or concept being measured.)
Score: 4 = A 3 = B 2 = C 1 = D 0 = U
Scoring Information Part a: 1 points correct answer (1/2) Part b: 2 points correct fraction (4/12 or equivalent 1/3) with explanations or pictures adequate to show understanding Part c: 2 points correct fraction (2/12 or equivalent 1/6) with explanations or pictures adequate to show understanding OR 1 point each (b/c) correct fraction with inadequate or missing explanation or picture OR pictorial representation of correct fraction Part d: 4 points 1 point each correct answer (Seth: $6, Alexis: $4, Bethany: $2, or each answer correct relative to answer given to Parts a, b, and/or c ) AND 1 point explanation or work showing correct strategy Notes: Do not give 1 point for answer if student indicates that all people earned the same
amount (e.g., saying that Alexis gets $4 if reasoning is 3 x 4 = 12; Seth, Alexis, and Bethany all get $12).
If amounts are not labeled with people’s names, assess amounts in the following order: Seth, Alexis, Bethany. If student only provides 1 amount and it is not labeled with a name or work to indicate the person receives that amount, do not award credit.