Direct instruction: how to construct a graph
: construct a graph from data table 2 homework: due
step 1: add a figure number & descriptive title beneath the graph
jo points
otep 2: place the label (with units if applicable) for the dv (what you are measuring) on the axis
step 3: place a label (with units if applicable) for the iv (what causes the dv to change) on the x axis
4. select the type of graph (bar graph, line graph) that shows the information most clearly.
• bar-use to display data when the iv is discrete. (to compare different things)
line - use to display data when the iv is continuous (time, temperature, concentration (shows trends
step 5: plot the data points (line graph) or construct t
the data points (line graph) or construct the bars with a space between each bar (bar chart).
able 2 - average human female height by age from a study of 5,000 females born in 1920 in new york city.
(independent variable)
(dependent variable)
age of female (years)
0
average female height (inches)
17
38
5
43
12
26
60
80
60
64
64
62