by Donggil Song, 2011.

Teachable Agent is an application based on the instructional technology that draws on the social metaphor of teaching a computer agent to help students learn. We wanted to apply the concept of Teachable Agent to the math education field.

1. Start Eins (no longer available)

2. Sign-in

3. Teaching Phase

4. Draggable Materials
You can drag & drop these icons to explain the meaning of the arithmetic mean. When these icons are moved to some of vacant rectangles, the program notices what this is.

5. Interaction
Currently, it’s simple, only echoing. Later, it will be upgraded to process a natural language.

6. The number of digits – Drag
The number of digits will be expressed on the board automatically. Users can also drag and drop this number.

7. The number of digits – Infinity and “m”

If “⋯” icon was clicked, the number of digits would become ∞. If “⋯” and “n” were used, the number of digits would become “m”. If you click the “Let’s call it a day” button, the test page will be shown.

8. Test Phase

9. Questions
After clicking the question buttons (1 to 4) sequentially, you will be able to see your agent’s test results.

10. Result – Grade D

11. Result – Grade C
If a tutor (user) explained (3+6+8)/3 as a meaning of the mean, Eins would solve the problems which deal with two or three digits only.

12. Result – Grade A pattern

13. Result – Another Grade A