- Pie Graphs (see pie graph presentations skills)
- Bar Graphs (see bar graph presentations skills)
- Line Graphs (see line graph presentations skills)
Pie Graphs | presentations skills
Pie graphs are very simple. It is overused, cause so easy to make. The excellence of pie graphs is that they show so clearly what they are supposed to show. When you look at a pie graph with 5 elements (slices), you quickly see which groups dominate. We often see pie graphs with more than 5 elements, but they then become more difficult to comprehend in short order. In most cases, consider whether your story needs to include details about all the players, or whether a group of insignificant contributors can be grouped as “others”. For improving presentations skills in making pie graph, click here.Bar Graphs | presentations skills
There are variations on the bar graph, such as a stacked bar, where different elements are stacked on top of each other to form a series, or a 100% bar graph, where all the bars are the same height but are split to show what percent of the whole the volume reflects. In a presentation environment, esoteric options are best to be avoided.It is to show relative sizes of different segments as well as the actual amounts, you’ll want to use a bar graph. Bar graphs are designed to show volumes against a y-axis that clearly delineates the units of measure. By having a series of bars next to each other, we can see how each element compares with the others as well as what absolute volume the element represents. For improving presentations skills in making bar graph, click here.
Line Graphs | presentations skills
Line graphs have the unique advantage of speaking to inherent right-brain prejudices about information. That is, when typically conditioned western minds see a graph with no labeling, they automatically assign “volume” to the y-axis, with “up” meaning “more”, and a time-line to the x-axis, with the left side meaning most recent. Just as we read from left-to-right, rightward motion subconsciously means positive motion.You would want to use a line graph, then, to show a progression in amount from one point in time to another. The elevation of the line at any one point represents the quantity of the tracked data at that moment. Audiences, wanting to be the first-to-know, will automatically make assumptions about the types of values x-axes and y-axes represent. Don’t disappoint them. For improving presentations skills in making line graph, click here.
Conclusion:
- Pie Graphs used for share
- Bar Graphs used for comparative Amounts
- Line Graphs used for trends, time
Choose the most suitable graph for your power point presentation.
Improve your presentations skills in making graph.
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Graph History
In particular, the term "graph" introduced by Sylvester in a paper published in Nature in 1878, where he draws an analogy between the "quantic invariants" and "co-variant" of algebra and diagrams of molecules.
One of the most famous and productive problems of graph theory is the four color problem: "Is it true that any map drawn in the plane may have its regions colored with four colors, in such a way that any two regions having a common border have different colors?" This problem was first posed by Francis Guthrie in 1852 and its first written record is in a letter of De Morgan addressed to Hamilton the same year.
The autonomous development of topology from 1860 and 1930 fertilized graph theory back through the works of Jordan, Kuratowski and Whitney. Another important factor of common development of graph theory and topology came from the use of the techniques of modern algebra. The first example of such a use comes from the work of the physicist Gustav Kirchhoff, who published in 1845 his Kirchhoff's circuit laws for calculating the voltage and current in electric circuits.
Source : wikipedia
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