by finding and recording the number of objects in a given set, using tally marks.
by finding the common attributes of line plots.
by comparing line plots in a given set.
by organizing a given set of data, using tally marks, line plots, charts or lists.
by collecting and organizing data, using tally marks, line plots, charts and lists.
by answering questions about a line plot, chart or list.
by answering questions about collected data.