Teacher guide
This site provides an endless supply of number systems practice questions in an academic format. Questions are generally limited to 0-255 / 8 bits, apart from floating-point binary.
The Question types side menu contains various types of number systems questions found on GCSE and A level course specifications. Students can answer ad-hoc questions of any type and track their progress.
Question sets
It is possible to create a Question set to be shared with others. When a shared link is visited the site will highlight how many of any combination of question types should be completed.
1) Create a Question set
Click on Create Question set and select the number of each type of question you would like in the question set. Then click on Copy share link for your Question set button.
If you wanted the following questions, your page would like the image here.
- 3 Denary to Binary
- 2 Hexadecimal to Denary
- 2 Binary addition
2) Share the Question set link
The example above would create this link with a query string
?den_to_bin=3&hex_to_den=2&binadd=2. When the link is visited, it will load the Question set as the images show.
3) Student works through Question set
As a student completes questions, the question count reduces and turns green with a
:tick: / ✅icon to indicate that question type is complete.
4) View progress of a student
Go to the progress page to see how a student is getting on.
In the image to the side, you can see they have answered 4 questions. 3 of them were in the Question set and 1 was not (Binary shift). You can see the time spent on each question from when it was first displayed. Here you can check if the student is clicking New question repeatedly to get a less complex question.
Additional Learning Resources
Enhance your students' learning with these interactive games and tools that make number systems fun and engaging.
Binary Tetris
Cisco's binary conversion game with a Tetris-like interface, no time pressure
Play Game