Number System Conversion Tool
Peer Review for material titled "Number System Conversion Tool"
User Rating for material titled "Number System Conversion Tool"
Member Comments for material titled "Number System Conversion Tool"
Bookmark Collections for material titled "Number System Conversion Tool"
Course ePortfolios for material titled "Number System Conversion Tool"
Learning Exercises for material titled "Number System Conversion Tool"
Accessibility Info for material titled "Number System Conversion Tool"
Please enter a Bookmark title
Please limit Bookmark title to 65 characters
Please enter a description
Please limit Bookmark title to 4000 characters
A Bookmark with this title already existed.
Please limit a note about this material to 2048 characters
Search all MERLOT
Select to go to your profile
Select to go to your workspace
Select to go to your Dashboard Report
Select to go to your Content Builder
Select to log out
Search Terms
Enter username
Enter password
Please give at least one keyword of at least three characters for the search to work with. The more keywords you give, the better the search will work for you.
select OK to launch help window
cancel help

MERLOT II




        

Search > Material Results >

Number System Conversion Tool

        

Number System Conversion Tool

Logo for Number System Conversion Tool
This tool uses JavaScript to implement a number system conversion tool that can be used to teach the concepts of different number systems as part of an introductory math or computer science course. Users can convert numbers from decimal to another base, and from other bases to decimal, and the conversion process is explained. There is also a quiz feature which allows students to test their ability to convert numbers on their own.
Material Type: Drill and Practice
Technical Format: Javascript
Date Added to MERLOT: March 11, 2001
Date Modified in MERLOT: March 10, 2009
Author:
Send email to gurwitz@sci.broklyn.cuny.edu
Submitter: Anna Gibson

Quality


  • Rate this material
  • Create a learning exercise
  • Add accessibility information
  • Pick a Bookmark Collection or Course ePortfolio to put this material in or scroll to the bottom to create a new Bookmark Collection
    Name the Bookmark Collection to represent the materials you will add
    Describe the Bookmark Collection so other MERLOT users will know what it contains and if it has value for their work or teaching. Other users can copy your Bookmark Collection to their own profile and modify it to save time
    Edit the information about the material in this {0}
    Submitting Bookmarks...

About

Primary Audience: College General Ed, Graduate School, Professional
Mobile Compatibility: Not specified at this time
Language: English
Cost Involved: no
Source Code Available: no
Accessiblity Information Available: no
Creative Commons: unsure

Connections





QR Code for this Page

Users who viewed this material also viewed...

Discussion

Discussion for Number System Conversion Tool

Log in to participate in the discussions or Register if you are not already a MERLOT member.

Return to Top of Page
Avatar for Wayne Brehaut
8 years ago

Wayne Brehaut (Faculty)

My first test was to convert -10 decimal to binary, and this gave an error message saying that '-' was not a decimal digit. There was no note on the tool itself that negative numbers were not allowed. The tutorial didn't mention this restriction either.

Although there may be a good reason for the restriction in "lesson 1", one can hardly advertise this as a suitable tool for "introductory math or computer science course(s)" and for an audience including "Graduate School , Professional" when it is so "minimal." Computer Science students, in particular, need to know about how negative binary numbers are represented using two's-complement--and everyone should know how to represent them in all the bases included in this tool by prefixing with a negative sign! And how hard could it be to include this in JavaScript?

After testing the quiz system, I agree with the previous reviewer who found it very elementary: it does not include any particularly effective feedback or opportunity to learn from errors, and there's no obvious reason for not reusing the "Explanation" functionality from the conversion tool itself to explain how the correct answer is obtained, instead of just displaying it when the student gives up.

The look-and-feel of the tutorial part, at least, could stand considerable improvement also, especially use of a grid to display the positional notation.

The whole system appears to be very much a "quick and dirty" implementation of the easiest part of number conversion. It needs considerable improvement in functionality, content, and documentation--both the tutorial and the user documentation--to be suitable for the intended audience.

I doubt that those who gave a high rating for this tool had checked many other such tools--though perhaps there weren't so many on the web when they did their assessments as there are now. There is now no need to use such an elementary converter, or to settle for such an elementary "tutorial."

Avatar for Dr. Judy Ann Serwatka
11 years ago

Dr. Judy Ann Serwatka (Faculty)

This site goes beyond some of the other conversion sites I've seen in that it
actually gives the conversion formula. It works well, and would be a good
teaching tool to use in a classroom environment.
Used in course

Avatar for Bob Tucker
12 years ago

Bob Tucker (Student)

Excellent tool. I am currently working with base conversions and found this
tool to be very useful. The only limitations I found with the tool was its'
inability to convert anything with a base larger than 16. This tool is
definately helpful with its' explanations on how the conversions work.

Avatar for Ryan White
12 years ago

Ryan White (Student)

Ecellent tool. I liked everything from the layout, to the functionality of the
tool. Very nice. Definitely a good learning tool.

Avatar for   Turner
12 years ago

Turner (Student)

I'm a student at TSUM in Alabama. We recently covered numbering system
conversions in class and I spent time using this site to check some of the work
I was assigned. The site was very helpful in checking some of the larger
numbers. I feel this site will prove very useful to both teachers and students.
The site is very user friendly.