Charts and graphs provide a great deal of visual appeal. It can be used in the classrooms to present data, illustrate important patterns or relationships, and observe changes as data is altered.
Reasons to use Charts and Graphs:
Provide a visual representation of data;
Effectively clarify information;
Represents many different types of data;
Make important ideas easily recognizable;
Allow learners to perceive information quickly.
There are a lot of types of charts. Some of them are bar chart, pie chart, line chart, histogram, and etc.
A bar graph is a visual display used to compare the amounts or frequency of occurrence of different characteristics of data.  A bar chart makes the information clear and immediately visible to students. (see Example )
A pie graph is also called circle graph. It is a circular chart divided into sectors, illustrating numeral proportion. Pie graphs show the relationship of parts of a whole and always show how a whole is divided.
A line graph is a type of chart that is created by connecting a series of data points together with a line.
A histogram is similar to a bar chart in structure that organizes a group of data points into user-specified ranges.
Most of the charts and graphs shown above are very traditional. Data visualization is a hot field and there are many new forms of charts. We can also call it – graphic organizer. Graphic organizer is a visual display that demonstrates relationships between facts, concepts or ideas. Graphic organizers guide learners’ thinking as they fill in and build upon a visual map or diagram. Graphic organizers are some of the most effective visual learning strategies for students and are applied across the curriculum to enhance learning and understanding of subject matter content.  The greatest and most helpful for learning types of graphic organizer are infographics and mind mapping.
One of the greatest is infographic. Infographics can be useful teaching tools as they use so many elements of traditional “teaching”: the writing process, research and planning, all while combining digital and traditional text forms.
Infographics are graphic visual representations of information, data or knowledge intended to present complex information quickly and clearly.  They may be thought of as a picture graphs yet tend to be more interesting than the typical bar graph or pie chart. The learning application for them is clear, with many academic standards, requiring teachers to use a variety of media forms, charts, and other data for both information reading as well as general fluency. Infographics are becoming great educational materials to use in both teaching and learning. (see infographic 1)
In the classroom, students can use infographics to present information in different ways. Creating infographics requires students to process the information and find ways to express it visually in simple and concise ways. If they do not fully understand the information they will have...