Used ICT facilities to teach higher class students in learning photosynthesis

The lesson was designed to teach students the process of photosynthesis. I googled the you tube and showed children how photosynthesis is taking place.
Since, students are viewing practically, they were amazed and some of them shared that learning was interesting and fun.
So, my personal understanding is that in this 21st century, teaching using chalk and board doesn't meet the needs and interest of students. Therefore for effective lesson delivery, we need to use ICT for better understanding of teaching.
Well, maximum of my period is afternoon and everyone use to put their heads down but teaching using ICT was different story. They Love to watch more and their level of interest in learning was double compare to teaching using chalk and board. Therefore, they belief and trust in our teaching and their interest in learning is motivating.