With this app. can you practice the writing letters? The letters used roughly correspond to the letters of 'pen strokes' and 'I pen' from Safe Learning Reading from the publisher 'ZWIJSEN'. The complete alphabet (26 letters) is discussed + the letter 'ij'. The letters 'c', 'q' and 'y' have also been added, although they are not taught in the 1st grade (group 3). Some of them may differ from other writing methods.