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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 create a dot (line) plot to display a set of measurement data.
Activating Strategy
Activating Strategy
For today's Math Warm-Up, look at the pictures. Decide: Which one doesn't belong?
Be ready to explain your answer using mathematical thinking.
NUMBEROCK Line Plot Song:
Mini-Lesson
Mini-Lesson
We learned to organize length measurements on Line (dot) plots yesterday. We analyzed the data on the line plot to draw conclusions about the data and answer questions about the data.
Today, we will continue this learning by showing how to create a line (dot) plot when the measurements are measured to half, fourth, and eighth inches on one line plot.
Listen as I think aloud about this next problem:
Today, I will model how to create a line (dot) plot using the measurements from Brad’s Pencils. I took the measurements from Brad’s Pencils and organized the data into a tally chart to help me create a line plot.
Brad’s Pencils answers:
Tally chart of the answers:
I will first determine the shortest and longest measurements, so I know where to start and end my line plot. The shortest pencil is 4 in., and the longest is 6 ⅜. Since the longest measurement falls between two whole numbers, I will extend my number line to the next greatest whole number (7) to help me partition my number line correctly. I also noticed the measurements have 2, 4, and 8 denominators. After partitioning the number line and the whole numbers, I will start partitioning each whole into halves and then fourths.
Step 1: Draw an open number line and label endpoints 4 and 7.
Step 2: Partition the number line into wholes, then halves (blue hash marks in image), and partition each half in half to make fourths (red hash marks in image).
Step 3: Partition each fourth in half to make eighths (green hash marks in image). Label all of the eighth hash marks on the number line.
Step 4: Label each fourth and half hash mark to show the equivalent fractions.
Now that we have each fraction labeled on our line plot, we can start to plot measurements on our line plots. We can use dots or X’s to plot the measurements.
I will place two measurements from the tally chart onto the line plot to get us started.
Watch a learning video:
Guided Practice
Guided Practice
Mathematicians, it is your turn!
Now, I would like you to work with your math group to draw this line plot and plot the measurements on the line plot. Remember the steps I took to draw the line plot.
Remember each step…
Title
Draw an empty number line and place endpoints (4 and 7).
Partition the number line into wholes, halves, fourths, and eighths.
Label all of the eighth hash marks.
Label all of the fourth and half hash marks.
Plot each measurement on the line plot; don’t forget to make Xs the same size.
Don’t forget to label the units used to measure the objects.
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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