Our report presents the importance of linking mathematics with practice, examining some current situations of teaching and learning Calculus I in high school and university. From there, we propose some innovative methods of teaching to link mathematics with practice to increase students’ interest.Our report presents the importance of linking mathematics with practice, examining some current situations of teaching and learning Calculus I in high school and university. From there, we propose some innovative methods of teaching to link mathematics with practice to increase students’ interest.