McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

CH

AP

TER

THIRTEENUsing Visual Aids

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

Advantages of Visual Aids

• Clarity

• Interest

• Retention

• Credibility

• Persuasiveness

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

Guidelines for Preparing Visual Aids

• Prepare visual aids in advance

• Keep visual aids simple

• Make sure visual aids are large enough

• Use fonts that are easy to read

• Use a limited number of fonts

• Use color effectively

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

Tips for Presenting Visual Aids

• Avoid using the chalkboard

• Display visual aids where listeners can see them

• Avoid passing visual aids among the audience

• Display visual aids only while discussing them

• Talk to your audience, not to your visual aid

• Explain visual aids clearly and concisely

• Practice with your visual aids

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

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McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

Movie industry revenues

0

20

40

60

80

100

1981 1990 2000

Year

Per

cent

of

mov

ie

indu

stry

rev

enue

TV & home video

Box office

Line Graph

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

Pie ChartSlice 4

0%

Married14%

Widowed or divorced

18%

Single68%

1900Slice 4

0%

Married55%

Widowed or divorced

19%

Single26%

2000

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

Bar Graph

Blacks

Whites

Median Household Income

$28,602

$46, 754

Blacks

Whites

Infant Mortality per 1,000 Births

13.7 deaths

6.0 deaths

Blacks

Whites

Unemployment Rate

8.9%

3.9%

Blacks

Whites

College Degrees14.7%

25.0%

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

Chart

Country of Birth Number of U.S. Residents

Mexico 6.7 millionPhilippines 1.2 millionChina/Taiwan/Hong Kong 816,000Cuba 797,000Canada 695,000El Salvador 650,000Great Britain 617,000Germany 598,000

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

ChartEMERGENCY TREATMENT

FOR POISONOUS SNAKEBITES

1. Tie a constricting band 2 to 4 inches above the wound.

2. Clean the wound with alcohol.

3. Make two shallow vertical incisions at the puncture points.

4. Draw the venom from the wound.

5. Wash the area thoroughly with soap and water.

6. Apply cold compresses.

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.

Chart

IMPACT ONHEARING

DECIBELLEVEL TYPE OF NOISE

Harmfulto

Hearing

RiskHearing

Loss

Loudbut

Safe

140130120

110100

90

807060

FirecrackerJackhammerJet Engine

Rock ConcertChain SawMotorcycle

Alarm ClockBusy TrafficAir Conditioner

McGraw-Hill ©Stephen E. Lucas 2001 All rights reserved.