How do you practice playing connected notes on the piano for beginners?

According to instruction captured in a piano lesson transcript, a key technique for beginners practicing connected notes on the piano involves careful finger release:

• When moving from one finger to the next (for example, finger 2 to finger 3), release the first finger only when you press the next one — not before and not while holding both down.
• The goal is for the notes to sound connected, not disconnected or overlapping.
• Practice slowly enough to control each finger movement — rushing causes loss of control.
• Keep the first joint curved on each finger while playing.
• Play toward the center of the key, not on the edge.
• Use a relaxed touch and rest weight through your feet to stay balanced.

This technique was practiced on both the two-black-key and three-black-key groups, moving up and then back down the keyboard with both hands.