Now for some catch-up.
You're going to play Patterns One and Two in C, up and down continuously, choosing fingering to get your fingers to the keys in time and keep going.
Look at the voice movement diagrams and circle/square/triangle symbols above the chords (you don't have to be able to read music to do this), and rehearse mentally what is going to happen.
Play Pattern One in C straight through, once with 1-3-5 for root position (circle) chords, and once with 1-2-4.
Run through this at least two or three times, until your fingering settles down and you're actually choosing the notes and fingers.
Recall that in Pattern Two ascending, you:
Rehearse the pattern or study the voice movement diagrams carefully as you read through.
Play Pattern Two in C, once using 1-3-5 for the root position (circle) chords, and once with 1-2-4 (where convenient).
Pattern Three ascending uses one bar of Pattern Two followed by one bar of Pattern One, alternating over the whole octave.
Check that you can see the two-bar pattern in C, ascending.
Watch the first half (ascending) of the video, listening carefully. You should be able to hear the difference between the two patterns/bars.
The video performance uses 1-2-4 for root position (circle) chords, where convenient.
Pattern Three descending starts with Pattern One, then alternating Pattern Two. This is just for musical reasons.
Watch the second half of the video to see/hear the two-bar movement pattern.
Then play the hybrid Pattern Three in C right through. You can play from the music even if you 'can't read music', just by following the voice movement diagrams.
Now go on to Page Five and master Pattern Three in D.