Section 1
Calculating Total Value Using Frequencies
Property
To find the total value of all data on a line plot, multiply each unique data value by its frequency (the number of times it appears), and then add all the products together.
In this Grade 5 Pengi Math lesson from Chapter 12, students use dot plot data to solve word problems by calculating total values with multiplication and addition and writing equations with variables to represent unknown quantities. They tackle multi-step comparison problems involving fractional units such as 1/2, 1/4, and 1/8, using the dot plot to support each step of their reasoning. Students also check their answers for reasonableness using estimation and benchmark fractions.
Section 1
Calculating Total Value Using Frequencies
To find the total value of all data on a line plot, multiply each unique data value by its frequency (the number of times it appears), and then add all the products together.
Section 2
Solving Multi-Step Problems with Line Plots Using Equations
To solve a word problem using a line plot, represent the unknown value with a variable (such as ).
Use the data from the line plot and keywords from the problem to write a mathematical equation.
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Section 1
Calculating Total Value Using Frequencies
To find the total value of all data on a line plot, multiply each unique data value by its frequency (the number of times it appears), and then add all the products together.
Section 2
Solving Multi-Step Problems with Line Plots Using Equations
To solve a word problem using a line plot, represent the unknown value with a variable (such as ).
Use the data from the line plot and keywords from the problem to write a mathematical equation.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter