Dear Family,
In previous grades, your student learned to create and analyze line plots. Now, your student is
using what they have been learning about adding and subtracting fractions to answer more
complicated questions about the data shown in a line plot. Your student is starting to think
about equally redistributing given data and illustrating the redistribution on a line plot to
prepare for analyzing data in later grades.
KEY TERMS
minuend
subtrahend
AT HOME ACTIVITY
Hands-On Ecological Data
Find a place outdoors where you can collect leaves, sticks, or rocks with your student.
Bring a notebook, pencil, and a ruler. Gather 10 to 15 of these objects. Invite your student to measure each item to the nearest 1 /8 inch and record the measurements. (You can also trace the objects to measure at home.) Then work with your student to create a line plot that shows the measurements of the objects. Don’t forget the labels on the line plots!
Talk about the line plot with your student, and ask questions such as “What surprises you about the data? What questions can you ask about the data? Do you think that if you gathered more data, the line plot would look similar or different? Why?”
Where’s the Water Line?
Pour different amounts of water into 5 to 8 clear cups of the same size. Then invite your student to predict where the water line would be if the water were distributed evenly across the cups. Work with your student to draw a line or place tape on each cup to mark their prediction. Then redistribute the water between the cups as evenly as possible. Discuss whether your student’s prediction was correct. Ask your student how redistributing water was similar to or different from redistributing cubes as they did in class.
Find a sample of our lessons below to help support MATH TALK at home.
Students also have these in their APPLY workbook.
Lesson 15
Represent data on a line plot.
By looking for the least and greatest data values given in a table, I can determine a scale to use on a line plot. Then I can represent the data on the line plot.
Lesson 16
Solve problems by using data from a line plot.
I can ask and answer questions and solve problems based on data presented on a line plot. I can determine whether a claim made about data is true by interpreting data represented on a line plot.
Lesson 17
Solve problems by equally redistributing a total amount.
When given data, I can make a line plot and equally redistribute the measurements. To equally redistribute the total, I can use a pictorial model or decompose fractions to find the sum of the measurements and then divide by the number of measurements.