Make a bean plant growth chart by first drawing a pair of axes. The vertical axis, often called the y-axis, corresponds to the height of the plants, while the horizontal, or x-axis corresponds to the time elapsed.
Divide the y-axis into even units of height, each of which should represent a linear measurement, such as inches or centimeters. For example, the first division may represent a plant that has grown 1 inch by a given time. Divide the x-axis as the y-axis was divided, but this axis should display units of time. For example, the x-axis may be divided into days, weeks or months. Make a dot on the graph that indicates how tall a plant was at a given time. Do this for each of the dates listed on the x-axis. Connect these dots to produce a line graph to measure and track the growth of several different plants at the same time.
To display such results on the graph, add the growth of each plant together, and then divide the result by the number of plants measured. This yields the average growth for each plant, which can then be plotted on the graph. Alternatively, the graph can indicate the growth of individual plants by marking the graph with different colors that correspond with different plants.