Simulations to stimulate the learning process
Some examples of Sobjoy's simulations

The Motorised Valve

The Trigonometer

The Transmission Simulator

The BMW Dashboard

The Fireman's Pole

The Scouse Speaking Clock

Tying a shoelace

House extensions

 Contact Sobjoy for a working version of this tutorial, which helps to explain binary notation. Sobjoy specialises in creating interactive pictorial resources to help explain things. Sobjoy's simulations can be applied in education, for example teaching numeracy to FE students.
  The latest Binary Converter is an example of Sobjoy's educational simulations, designed in this case to help students to understand binary notation. The screen shots here show the different modes of operation that are integral to the product. Above is the Decimal-to-Binary mode. Sobjoy can also provide resources for use in  commercial areas (for instance showing how a proposed device might work before it is possible to place it with users).
  This image shows the binary to decimal feature of the Binary Converter. If you have a requirement that might be addressed by the use of precision computer-based animations, please contact Sobjoy.
  The image above shows the Binary-to-Decimal mode of operation. The user can click on highlighted digits to examine the contribution made by the respective columns to the binary value.  
  This image shows how the Binary Converter presents significant values and allows the user to add to or subtract from those values in both decimal and binary. The links to the left of the page show some samples of what can be provided. If you have ideas as to topics that might usefully be covered, email colin at sobjoy dot com.
  Above is an image of the Count mode of operation, with its dedicated buttons allowing the user to jump to important values as well as adding to or subtracting from displayed values. The binary and decimal values remain synchronised while the user makes changes. The grey buttons allow the significant column values to be examined.  
  Here is the Binary Converter in Questions mode, presenting a random value and inviting the user to convert it to an alternative format. The highlighted columns in the binary display are shown to contribute to the binary value.  
  In Question mode, illustrated above, the Binary Converter supplies unlimited numbers of questions requiring the user to translate supplied values from decimal to binary or vice-versa. The Worksheet provides a means of building binary numbers in an explorative way to answer the questions.  
   
  The User Guide provides a complete explanation of the workings of the Binary Converter in all its modes.

By presenting equivalent values alongside each other in binary and in decimal form, and by allowing students to construct binary and decimal values, perform addition and subtraction on them, the Converter encourages an understanding of how the columns in these two formats have different meanings.

The Binary Converter can be purchased for personal use. See Sobjoy's Ebay shop. Schools and colleges can get a free version for appraisal, and a licenced copy for unlimited use in the school. Contact Sobjoy for details.