“Opening Words”… Quotes about Understanding. “Any fool can know. The point is to understand.” Albert Einstein “Life can only be understood backwards; but it must be lived forwards. Søren Kierkegaard. AIM = Why do we use tables and graphs…?. * Tables and graphs are used to
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* Tables and graphs are used to
collect, organize, and interpret data.
Introduction to Tables
commonly used in collecting and organizing raw data during an experiment
also for representing final data to be included in a paper or report.
“raw” data are recorded in tabular form in a spreadsheet, a lab notebook, or a lab manual
once recorded, data need to be reorganized, summarized, and reshaped into a final table or graph
A double bar graph can be used to make comparisons in data.
a simple survey question to ask all
members of the class
(or solo if you can collect your data easily on your own)
** Each student will complete their own graph
from the survey data collected
As the independent variable increases, the dependent variable increases as well.
As the independent variable increases, the dependent variable decreases.
-Goes on the X – axis (horizontal)
-Should be on the left side of a
-Goes on the Y – axis (vertical)
-Should be on the right side of a data table
2.Determine the scale of the Graph
a. This tells what the lines on your graph represent. Label each axis with appropriate units.
4. Plot the Data Points
a. plot each data value on the graph with a dot.
5. Draw the Graph
a. draw a curve or line that best fits the data points.
b. Most graphs of experimental data are not drawn as “connect the dots”.
6. Title the Graph
a. Your title should clearly tell what the graph is about.
b. If your graph has more than one set of data, provide a key to identify the different lines.