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InstructionalInstructional objective: objective:

let’s consider some recommendations:

I. for e-learning courses is suggested that on-screen graphics include printed text when using drawings, charts, graphs, maps , photos, etc..

• In the drawing to the left, text is being used to label the components that will represent the instruction, along with the graphic. In this particular case, Voltage is represented by the Battery with the colors orange arrow and Pusher, the Current is represented by the wire with colors ofblue water.

Voltage

Current

I. Multimedia example :

Instruction: the colors are used to correspond to the compared values. An orange arrow and push to the Battery and the blue water to the wire flow in the battery.

• • When the intent is to teach a Science Concept such as

Voltage and Electrical Current, a drawing would be appropriate to help the student visualize the theory.

• In order to help the cognitive process of understanding, the use of “annotated frames” and “dialog boxes” are used to mentally integrate the material with existing knowledge.

II. Multimedia example :

Take a look at the diagram:Voltage would be the Force Pushing the Water inside the pipe.

Current would be the water flowRepresenting the wire in the Battery.

VOLTAGE VS. CURRENT Voltage is the Force that Causes Current to flow in a Battery, and It is measured in Volts. Current is the flow of electricity and its measured in Amperes.

Voltage

Current

Let’s consider some recommendations:

I. For e-learning courses is suggested that on-screen printed words be placed near or next to corresponding graphics, by integrating the text and the graphic on the screen.

• For this particular graphic, the components have been identify individually, and the functionality for each component is described next to the graphic as closed as possible so the learner can look at the graphic and learn its functionality at the same time.

Functional Test

The computer controls all operations for the PCB (Printed Circuit Board). The power supply provides the power for the Printed Circuit Board. The Counter keep track of the oscillating frequency for the PCB. The Main Ethernet Switch either connects or disconnects the computer to the PCB. The HUB help data communication transfer between the Computer , the system analysis, and the PCB. The dash lines represent an optional connection between the PCB and the computer . Tests in this section are performed on an Test System Station.

I. Contiguity Example :

• The graph is showing in this picture but, most of the text explaining the content functions

is missing.

• A poorly design webpage screen will have the visual illustration showing first , then the text appears further down the screen. Therefore loosing cohesiveness between the two.

II. Poor Design - Example :

II. Better design - Contiguity Example : Integrating text and visuals on the same scrolling screen, will help

the learner during the cognitive process of acquiring knowledge and organization of the material. Avoiding scrolling back and forth to look for information and helping maintain cohesiveness of the material being presented.

When the following dialog boxes pop-up, Enter the data accordingly. First enter your initials and ID number. Then answer “yes” to setup the OmniBER. Then enter the XC1 serial Number. accordingly.

• When the instructions, on what to do with this pop-up windows, are presented at the bottom of the page as shown, the learner will have to scan top to bottom to follow the directions.

III. Separation Design - Contiguity example :

• A better alternative is to use a legend to indicate the instructions of each separate graphic.• Displaying captions close to the graphic and inserting lines to connect text and visual, will help the learner follow directions as he or she continues browsing and reading the material.

III. Better design - Contiguity Example :

Enter your initials, or your ID number, then hit OK.

Click “yes” to setup the OmniBER

Enter the XC1 Serial Number, then hit OK.

For the following set of examples, select the example that best describes the “multimedia principle”.

procedurepower supply and oscillator teststhe tests in this section are performed at the workbench with a 48 volt dc power supply, multi-meter, and oscilloscope. they verify the correct operation of the oc-48 dc/dc converter modules and oscillators, as well as some basic functionality of the board.

 connect the dc power adapter to pin1 of the j1 connector on the oc-48 card. turn on the top-ward dc power supply.measure the voltage across the c40, c45, c72 and c75 capacitors on the oc-48 card with the multi-meter. verify that the voltages are as listed as below:

 

PROCEDURE POWER SUPPLY AND OSCILLATOR TESTS The tests in this section are performed at

the workbench with a 48 Volt DC power supply, multimeter, and oscilloscope. They verify the correct operation of the OC-48 DC/DC converter modules and oscillators, as well as some basic functionality of the board.

  Connect the DC Power adapter to pin1 of

the J1 connector on the OC-48 card. Turn on the Topward DC Power Supply. Measure the voltage across the C40, C45,

C72 and C75 capacitors on the OC-48 card with the multimeter. Verify that the voltages are as listed as below:

CAPACITOR VOLTAGE C40 3.135V – 3.465V C45 2.375V – 2.625V C72 1.425V – 1.575V C75 1.140V – 1.260V  

CAPACITOR VOLTAGE• C40 3.135V – 3.465V• C45 2.375V – 2.625V• C72 1.425V – 1.575V• C75 1.140V – 1.260V

A

B

Answer

• Yes, the multimedia principle is based on both Text and Graphics combined on-screen.

• Also, when placement of the text is near the graphic, helps to keep relationships among the topics.

B

procedurepower supply and oscillator teststhe tests in this section are performed at the workbench with a 48 volt dc power supply, multi-meter, and oscilloscope. they verify the correct operation of the oc-48 dc/dc converter modules and oscillators, as well as some basic functionality of the board.

 connect the dc power adapter to pin1 of the j1 connector on the oc-48 card. turn on the top-ward dc power supply.measure the voltage across the c40, c45, c72 and c75 capacitors on the oc-48 card with the multi-meter. verify that the voltages are as listed as below:

 

CAPACITOR VOLTAGE• C40 3.135V – 3.465V• C45 2.375V – 2.625V• C72 1.425V – 1.575V• C75 1.140V – 1.260V

Some error dialog boxes may ask you to check the output on the ProComm screen for more detailed error information

Some error

dialog boxes may ask you to check the output on the ProComm screen for more detailed error information

A B

• Yes, the closer the instructions to the graphic the better.

• Also, using connecting lines to the graphics avoids a lot of guess work.

Some error dialog boxes may ask you to check the output on the ProComm screen for more detailed error information

B

• http://help.adobe.com/en_US/Dreamweaver/10.0_Using/index.html• e-Learning and the Science of Instruction: Proven Guidelines for

Consumers and Designers of Multimedia Learning, 2nd Edition Authors: Ruth Colvin Clark, Richard E. Mayer

• ProComm Plus for Windows, VxWorks. Version 4.8 • Original drawings created with Bitmap Microsoft windows.

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