學前交叉之前，要習慣舉起腳的動作，最好先已學識基本的內外刃，但不懂也沒有關係，反正交叉腳都可以幫你練習到內外刃。詳情可以看以下的片段：
USFSA Preliminary 1
Forward and Backward Crossovers
The skater will perform forward crossovers in a figure eight pattern. It is expected that the skater will perform the transition between circles on one foot. Four to six crossovers per circle are recommended. Upon completing the forward figure eight, the skater will perform a swing roll and change of edge to an open mohawk in order to turn from forward to backward and continue the figure eight pattern with four to six backward crossovers per circle. This move may start in either direction. Introductory steps are optional.
Focus: Power
ref: M09-Forward and Backward Crossovers
The 2016 Official U.S. Figure Skating Rulebook
0:22 step cross the other foot
要熟習舉起單腳, 交叉去另一隻腳
0:55 make sure hip don't move
1:00 練side step, 手和腳成90度, 不是平行
1:27 習慣外刃
2:05 push on circle => feet together
2:16 嘗試交叉壓腿
Forward Crossover 前交叉步
Backward Crossover 後交叉步
USFSA Preliminary 6
Alternating Backward Crossovers to Backward Outside Edges
The skater will perform alternating backward crossovers to backward outside edges in consecutive half circles for one length of the rink. Four or five lobes should be skated. Introductory steps are optional.
Focus: Power and extension
ref: M17-Alternating Backward Crossovers to Backward Outside Edges
The 2016 Official U.S. Figure Skating Rulebook
USFSA Pre-Juvenile 1
Forward and Backward Perimeter Power Stroking
The skater will perform four alternating forward crossovers separated by strong forward inside edge transitions. The end pattern consists of two forward crossovers followed by a LFO open stroke; then a RFI open mohawk followed by one or two backward crossovers. All end pattern steps should be performed with an even cadence except the LFO open stroke, which should be held for two counts. The second side of the pattern resumes with four backward crossovers separated by two-foot transitions, also known as a power push. Skaters should take care to perform the transitions on two solid inside edges. The second end pattern consists of three to five backward crossovers. Introductory steps are optional.
Forward focus: Power and extension
Backward focus: Power and edge quality
ref:
M19-Forward Perimeter Power Crossover Stroking - Counterclockwise only
M21-Backward Perimeter Power Crossover Stroking - Counterclockwise only
The 2016 Official U.S. Figure Skating Rulebook
USFSA Juvenile 1
Stroking: Forward Power Circle
Starting from a standing position, the skater will perform forward crossovers progressively increasing in foot speed and acceleration throughout the entire move, from a slow, but gradually accelerating pace to fully accelerated crossovers. As the skater accelerates, the circle circumference increases. Power circles are performed in both counterclockwise and clockwise directions. It is recommended that no more than 15 crossovers be utilized in completing each portion of this move. This move may start in either direction.
Focus: Power
ref:
M65-Forward Power Circles
The 2016 Official U.S. Figure Skating Rulebook
USFSA Juvenile 2
Stroking: Backward Power Circle
Starting from a standing position, the skater will perform backward crossovers progressively increasing in foot speed and acceleration throughout the entire move, from a slow, but gradually accelerating pace, to fully accelerated crossovers. As the skater accelerates, the circle circumference increases. Power circles are performed in both counterclockwise and clockwise directions. It is recommended that no more than 15 crossovers be utilized in completing each portion of this move. This move may start in either direction.
Focus: Power
ref:
M67-Backward Power Circles
The 2016 Official U.S. Figure Skating Rulebook
2006版國家等級步法考試（舊版）
2B-一套交叉步組合
二級B: 這是一套交叉步組合練習，目的是讓學員體會單足支撐的滑行感覺，以及左右方向的變化。
2006版國家等級步法考試（舊版）
3B-四個方向交叉步組成的步法
三級B:這是一套由四個方向交叉步組成的步法，其中包括了4拍、2拍和1拍的節奏變化。其目的是要提高學員對節奏的掌握能力和對滑行的控制能力。