Presentation (PowerPoint)

  Distributing Classroom-

Based Videos Economically Via the

Internet

Elizabeth Turner SmithUniversity of Louisiana at [email protected]

Jane WamplerUniversity of Louisiana at [email protected]

http://www.ulm.edu/~esmith/nctm

Motivation Need for ULM Specific Math Videos

(not generic) Desire to Offer Classes via Internet Need for Inexpensive Delivery Wanted Accessibility for Majority of

Students (not just distance learning students)

Earlier Attempts Streaming Video (thought about it,

couldn’t afford it!) Initially Attempted Incorporation of

Web-Delivered PowerPoint with Videos .AVI and .WMV movie unstable when

loading to Blackboard

Attempts Direct .WMV problems

Video Quality Low and Large Video and Audio Machine Dependant

and Unstable

Attempts (cont.) Importing from .AVI form to .WMV

Higher Quality and Much Smaller Size, as Little as 1/30 of Original .AVI Size

Original .avi Converted .wmv

What was produced Web (and CD) Delivered Window Movie Maker Clips of Class

Content Viewable from Internet Explorer

Browser When on CD, Internet Connection not

Needed

Making Video Even Smaller Long Videos

Small Single Problem Clips Reduce Download Time

Videos Made on White Board Glare from Board

and Character Bleed from Markers

Making Video Even Smaller (cont.)

Small chalk board Eliminate Character Bleed and Some

Glare As Little as 1:30 Compression Rate

Camera Placed above Board Eliminates Camera Glare

Making Video Even Smaller Quality of Original Video Does Not

Impact Size of Final .wmv File Low Quality .avi File about 250K/sec. with

Resulting .wmv File about 12.5K/sec. High Quality .avi File about 370K/sec.

with Resulting .wmv File from 12.5 to 13K/sec.

Not a Huge Sacrifice of Space for Greater Quality!

Developer of Video Needs Web Camera MS Windows Movie Maker

Which is Included in ME & XP Web Site with Ample Server Space

Math093 is Using Approx. 1.5GB CD Burner Tripod Small Chalkboard

Computer Requirements to Develop Videos

Pentium II or Better 300mHz or Better 64 MB RAM 2.5 GB of Free Space on Hard Drive

Large Hard Drive to Store .avi and .wmv files

USB port Windows ME or XP

Cost (assuming you have the computer)

Web cam $ 100 Upgrade ME (if needed) $ 99 Tripod $ 15 Chalkboard $ 15 Total Cost $ 229 (or

less)

Procedure to Make Video

1. Video Made with Simple Web Camera in .AVI Format

2. Import Video into Windows Movie Maker

Edit and/or Merge with Windows Movie Maker

3. Save Clips into Window Movie Maker .WMV file

4. Place on Website

To View (No Windows Movie Maker needed!) Must have IE (free) and Media Player (free)

Cost Students Nothing! Open IE, Go to Website Click Video, Automatically Opens in Media

Player Watching Videos

As much as student wants Pause Rewind Save to hard drive

Plug-ins Available for 95, 98, ME, XP, Macs and Supposedly Netscape

Problems (and Solutions) Windows Movie Maker Only on

Windows ME and XP Solution: Upgrade Windows (approx.

$100) Only Need if You are Creating Videos

Students Without High Speed Still Have Problem with Download Time Solution: Create CD version

Responses and Concerns IE Dependent

Netscape Developed Plug-in, But Have Had Trouble

Not Sure about Usage on Macs Download for Students is Slow if not on

Campus or Without Cable Modem or DSL

The Slower Your Machine the More Likely You are to Have Pauses in Video

Takes more Time to Convert and Upload than to Create

Uses at ULM Review of Material for

Developmental Math Test-Outs Review of Class Lecture Material for

Maths 093 and 111 If a Student Misses, Lecture Can Still be

Seen and Heard Course Instruction for Internet

Courses (not just text, audio and video included)

Possible K-12 Uses State Assessment Review Material

for Parents and Students Material for Absent Students Review for First-time Teachers of

Material Capturing Field Trips for Use in

Future Years Your Ideas?

Conclusions Continued Response from

Students, Other Teachers, and General Public is Very Positive

Potential Uses Numerous Biggest Cost, for the Creator, is

Time Costs Students Nothing

Contact InformationBeth SmithUniversity of Louisiana at

[email protected]

ULM Department Mathematics Websitewww.ulm.edu/~mathweb

Click on Math093 or Math111

Jane WamplerUniversity of Louisiana at [email protected]

Camera Information We are using:

Intel Pro PC Camera (no longer available)

Spec Information can be Found at:http://www.intel.com/pccamera/pro_sysreq.htm