Draw line plots including fractions of 1/3, 1/2, 1/4, and 1/8. Answer *how many more,* *how many less,* and *how many in all* questions involving such plots.

Line plot distribution: trail mix by Khan Academy

Do these Khan Academy exercises:

Next, give your students these challenges:

- 2 Rings by NRICH
- 2017 Math Kangaroo Levels 3-4 Problem #22 by STEM4all

Conclude by leading this investigation:

Square Sardine Packing (percentages, algorithm)

by MathPickle

4.MD.B.4: Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8). Solve problems involving addition and subtraction of fractions by using information presented in line plots. *For example, from a line plot find and interpret the difference in length between the longest and shortest specimens in an insect collection.*

5.MD.B.2: Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8). Use operations on fractions for this grade to solve problems involving information presented in line plots. *For example, given different measurements of liquid in identical beakers, find the amount of liquid each beaker would contain if the total amount in all the beakers were redistributed equally.*