These are FREE finger drills are to help master the -TD stroke.  I use -TD as a -th ending, in words such as: math,  teeth,  width, etc.  It is also commonly used for verbs ending with the T sound in the past tense (adopted, eliminated, etc.) FYI, I use wide keys for -TD, I think it makes it easier...

These drills are made to strengthen the -FN and -MGS stroke. -FN is used for words ending in  -sen, son, etc. Words like: chosen, loosen, risen, worsen, lesson etc. Names like: Jackson, Davidson, Johnson, Jetsons.  Mastering the -FN stroke can save a stroke. -MGS is used for words ending in -mation....