Line graphs
Japanese school year: Elementary 4
What you learn
Learn how to read and draw line graphs, which represent quantities changing over time, such as temperature or weight. Analyzing the slope of the lines helps identify increases and decreases. Prior familiarity with reading graph scales and plotting points connected by straight lines will facilitate your learning.
Key points
This describes the purpose and characteristics of a line graph. It is used to display changes over time, like temperature, where the line's slope visually conveys the rate of increase or decrease.
This explains the meaning of slopes on a line graph. An upward slope indicates an increase, a downward slope indicates a decrease, and a horizontal line represents no change in value.
This outlines the procedure for plotting a line graph. Assign time to the horizontal axis and values to the vertical axis, plot points at coordinates, and connect them. A wavy line can omit unused lower ranges.
Choose a set to practice.