INSTRUCTIONAL TECHNOLOGY 3(2+1)

Lesson 23 : Visual Aids - Charts

Bar charts (or Bar graphs)

These are used to compare quantities at different times or under different circumstances. They are compared of measured blocks spaced along a clearly marked scale.

Job charts: Eg: Gramsevak’s job chart. Where the jobs of persons in the organization are written

Tree chart or stream chart: Are used to show the development or growth of something in the shape of a tree or stream.