This product is meant to help you in evaluating student knowledge of complex French sounds. I put the flash cards on the ring and have the student say the sound, then flip the card to move to the next. I use a different coloured pen on the recording sheet each term to check when they know a sound. 38 sounds (è, ê, é, ou, on, in, ch, an, ai, eu, au, en, om, em, eur, eau, gn, oi, ei, ain, oin, ien, ph, ui, im, am, ein, tion, qu, er, et, ez, un, ail/aille, ouil/ouille, eil/eille, ill/ille, euil/e