**Venn diagrams** are a useful teaching tool for educators and students, given the advantages of displaying and organizing information. The diagram is created by overlaying two circles to create a third shape within them, which displays all of the areas of overlap between both circles in that area. This can help students study complex concepts without getting lost in the minute.

**What is a Venn Diagram?**

Venn diagrams are a basic set representation. These diagrams showing all the logical relationships between finite elements were invented in 1880 by the English logician and philosopher John Venn.

It lays out the logical contexts of logic, probability, linguistics, computer terms, and all related things.

A Venn diagram is a diagram that shows the logical relationship between sets. It was popularized by John Venn in the 1880s and is now widely used. They are used to teach basic set theory and demonstrate simple set relationships in probability, logic, statistics, linguistics, and computer science. A Venn diagram uses closed curves drawn in a plane to represent sets. Often these curves are circles or ellipses.

Similar ideas had been proposed before Venn. In 1712 Christian Weise (Nucleus Logicoe Wiesianoe) and Leonhard Euler (Letters to the German Princess) 1768, came up with similar ideas. Venn popularized this idea in Symbolic Logic, Chapter V “Diagrammatic Representation,” 1881.

**How to Use a Venn Diagram in the Classroom**

An organized Venn diagram is perhaps the most basic tool for studying relationships among multiple topics or things. This can be an effective method for organizing ideas, as it directs students to think critically about how two or more things are alike and how they differ. For example, one topic might be about animals, another about food sources. The teacher can create a basic Venn diagram on the board with thematic categories at the center of each circle. Questions asked during class can lead to new circles being drawn on the board as needed.

The other circle is for what all the things have in common; this makes up the overlapping section of the Venn diagram. The overlapping section shows what all the things have in common, and the sections not overlapping show what each thing has that is unique to just that one thing.

**How to Draw a Venn Diagram**

A Venn diagram is probably the easiest type of diagram to understand. Especially if you want to compare a few relationships, you can easily see what’s going on just by looking. Let’s say you want to make a Venn diagram about plant and animal cells.

First, you make a list of descriptive terms for each. The next step is to draw two intersecting circles. In fact, you can use as many hoops as you want, depending on how many things you want to compare. By the way, the shape you use does not always have to be a circle. In the region where these circles intersect, you write the common features in plant and animal cells. You write down the features that belong to only plant or animal cells in the remaining parts.

**Venn Diagrams and Note Taking**

Note taking, and list making are two skills that students need to learn in order to create Venn diagrams effectively. Learning how to make lists and take notes is a precursor to Venn diagram ability. A teacher can use note-taking lessons first before focusing on diagrams if they are dealing with younger students or if they notice a need.

Notes and diagrams are important tools in understanding Venn diagrams. Students should not be trying to cram whole sentences or paragraphs of information into the diagram. Teachers can help by looking for keywords or phrases and building a short note or reminder out of them. Understanding that not every detail has to be written in the diagram will help students understand that their notes should be short but informative.