Challenge: Fiche conceptuelle didactique. La fiche conceptuelle didactique sur les ondes mécaniques est une tentative qui permet de clarifier et d'expliciter ces concepts et son réseau conceptuel. Fiche

Hello to all members of the Hive community. I shared this position with you to give a simple description of the waves that make up the school program I teach in high school. This concept seems abstract

source Greetings to all members and friends of our Hive community. It is with pleasure that I want to begin the subject of school violence following, unfortunately, real accidents. Today, in my country,