model
an object usually built to scale that represents another object in detail
graph
a visual aid used to show statistical trends and patterns
line graph
a graph that uses one or more lines to show changes in statistics over time or space
pie graph
a graph that highlights segments of a circle to show simple distribution patterns
bar graph
a graph that uses vertical or horizontal bars to show comparisons among two or more items
chart
a visual aid that summarizes a large block of information usually in list form
transparency
a visual aid drawn written or printed on a sheet of clear acetate and shown with an overhead projector
multimedia presentation
a speech that combines several kinds of visual and/or audio aids in the same talk
font
a complete set of type of the same design
advantages of visual aids
clarifies message, generates interest, help retention, combat stage fright
types of visual aids
models graphs charts transparencies multimedia
guidelines for visual aids
prepare visual aids in advance, practice with them, keep it simple, legible fonts and few, use color effectively
guidelines for presenting visual aids
avoid chalkboard, display VA where audience can see, avoid passing VA around, display VA only when discussing them, talk to audience not VA, explain VA clearly/concisely, practice with VA