Palope is a Fibel developed by prof. Christa Röber (Germanistik / Pädagogik, Uni Freiburg) and her team
the essence of Fibel is the scaffolding sequence - from simplest syllables to evermore complex structures
in Palope, the trochaic structure of German language is exploited to maximum to facilitate the Einstieg in the world of written letters
good design choices (not phoneme-driven but syllable-driven) many interesting inovations (color coding of different syllable types) and cognitivelly powerful methods (e.g. "Silbentepiche")
and it is a community project ! (e.V., all OERs under Creative Commons etc.)
the Primer should not replace the human teacher but assist her (e.g.by keeping track of what individual children know and do not know)
adapt the Primer to the child and not child to the Primer (all our speech recognition models run on our own servers / local hardware and can easily adapt to a concrete pupil or group of pupils)
as the child learns, so does the Primer (we call this "Human Machine Peer Learning")
Achtung, Gefahr: !!! by focusing too much on the technical, AI-related side of things, one may easily fall into trap of poor pedagogical practices !!!