"Tambour battant" proposes to work the memory of the digital oral chain by counting the number of drum beats.

- Level 1: count and reproduce a collection
* click on the drum to hear and count the beats
* tap on the drum to reproduce the number of beats heard, then validate on the green arrow.
* Serge button (help): display of the number of strokes in encrypted writing; audio playback on click.

- Level 2: count and associate a collection with a ciphertext [/b]
* click on the drum to hear and count the beats
* choose the corresponding ciphertext (audio playback of the button clicked), then validate on the green arrow.
* Serge button (help): display of the number of strokes in the form of notes.

- Adjustable work interval: click the options button on the home screen.
- To reset the scores, click 5 times on Serge the lama on the home page.


This application is part of the mathematics programs of cycle 1 (France):
- Make a collection whose cardinal is between 1 and 10.
- Read written numbers up to 10.