Where the players start
The point guard holds the ball above the top of the key. The two bigs stand on the elbows, near the lane line. Wings stay wide so the first screen opens a driving lane. Place your five in one color and the defense in another before the first arrow.
The first action
One elbow big screens for the guard. Draw the screen as a short mark and the ball path as an arrow to the wing or the middle. If the screener rolls, continue the arrow to the rim. If the screener pops, the arrow returns toward the three-point line.
What to write down
Name the set and note the coverage you expect: drop, switch or hedge. A note such as “slip if the big hedges” is more useful than another line. Save it so the same horns set opens at the next practice.