本研究的目的在於探討體育系初學者三級跳遠的三跳比例、步幅比例標示對三級跳遠及其三跳表現的影響。以未曾學習過三級跳遠的國立臺北師範學院體育系91級學生24名為受試對象，將受試者隨機分配至步幅比例標示級及對照組，經過四週、每週二小時的三級跳遠教學後，測驗其三級跳遠三步步幅。結果發現：(一)體育系初學者之三級跳遠三跳比例為34.07%：24.65%：40.55%。(二)步幅比例標示有助於三級跳遠動作表現：且本研究之級跳遠教學設計有助於三級跳遠動作表現。(三)步幅比例標示有助於跨跳表現；且本研究之三級跳遠教學設計有助於騰跳及躍跳之動作表現。因此，建議體育教師或運動教練在教導三級跳遠時，可運用步幅比例標示於教學活動上。

　　　　　The purpose of this study was to investigate the triple jump's rates of new learners in Physical Education Department and the effects of "sign of step's rate" on the performance o triple jump. 24 freshmen in NTTPTC were divided into two groups: "sign of step's rate" group and control group. These subjects received triple jump was measured. The results are as follows: 1.The triple jump's rates of new learners in Physical Education Department were 34.07%: 24.65%:40.55%. 2.The "sign of step's rate" and the triple jump course were helpful to the performance of triple jump. 3.The "sign of step's rate" was helpful to the performance of" step" in triple jump. The triple jump course was helpful to the performance of "hop" and "jump" in triple jump. The results suggest when teachers or coaches teach triple jump, they could use "sign of step's rate" in teaching activities.