How to extract any square root by hand!

    In an era where smartphones are used daily by schoolchildren, wanting to extract a square root might seem "old-fashioned"… However, in France, this technique was taught in primary school until about the 50s/60s. At present, the pupils, arriving in...
Multiply with your fingers!

Multiply with your fingers!

Multiplication tables remain a nightmare for schoolchildren to see worse for students. Emmanuel Macron knows very well this cold and terrible fear of being questioned about it, and this still currently… . Teacher I tried to find ways to help my students...