Embedded Files
AKS: 4MA.D.6 measure time and objects that exist in the world to solve real-life, mathematical problems and analyze graphical displays of data to answer relevant questions (4.MDR.6).
Learning Target: I can analyze data in line (dot) plots to solve problems involving addition and subtraction of fractions.
I can explain how to analyze data displayed on line (dot) plots to solve word problems involving addition and subtraction of fractions.
Activating Strategy
Activating Strategy
Mini-Lesson
Mini-Lesson
Yesterday, we analyzed the data on the line plot to draw conclusions about the data and answer questions about the data.
Today, we will learn to analyze data in line (dot) plots to solve problems involving addition and subtraction of fractions.
Listen as I think aloud...
The line plots show the amount of rainfall in two cities in one week.
What is the difference between the greatest amount of rainfall in New York City and the greatest amount of rainfall in Chicago? What is the total rainfall in New York City for one week?
After reading the problem, I know I will find the difference between the greatest rainfall in New York City and the greatest amount in Chicago.
Before solving this problem, I need to analyze the line plots to determine the greatest rainfall in each city. In Chicago, the greatest amount of rainfall was 3/4 inch, and in New York City, it was 2/4 inch.
Now that I have analyzed the line plots to find the greatest amount of rainfall represented in each city, I can now subtract to find the difference.
3/4 inch - 2/4 inch = 1/4 inch
The difference in rainfall is 14 inches.
The second part of the problem asked how much total rainfall occurred in New York City for one week. I will need to use addition to solve this.
I can find the total rainfall in New York City for the week by adding the data values in the New York City line plot. So, I will add 0 + 0 + 1/4 + 1/4 +1/4 +1/4 +2/4 = 6/4. However, we do not read that amount as 6/4 inches of rain when determining how much it rained. We need to convert this improper fraction into a mixed number. Let’s draw a model to help us show 6/4 as a mixed number.
As a mixed number, 6/4 inches equals 1 2/4 inches.
Therefore, the total rainfall in New York City for the entire week is 1 2/4 inches.
Watch a learning video:
Guided Practice
Guided Practice
Mathematicians, it is your turn to try a problem!
The dot plot shows the distances Caleb ran and how many times he ran that distance. How many times did Caleb run more than 2 ½ miles?
Remember, you can analyze data in line (dot) plots to solve problems involving addition and subtraction of fractions.
Independent Task
Independent Task
1. FRECKLE - Complete THREE Freckle Assignments each week. DUE FRIDAY. Your HIGHEST score in Targeted Practice is your weekly math grade - Click HERE for Freckle website
GRADED Targeted Practice - Current skill (5 questions; Score Goal=80% or higher)
Fact Practice - Multiplication Fact Practice
Adaptive Practice - At YOUR level
2. iREADY Math - Complete 30 minutes at your level each week
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