Follow

This week I said to my students "how many digits do you use to approximate non-exact square root?" Almost everyone said 2. Why? They did not know. My opinion it's because math teachers repeadely told them

*without any reason*... #log #classrroom #badpracticing

@ccppurcell no. I did not shame it. Sorry if you felt it. I just want to think yourself

Chris Purcell@ccppurcell@mathstodon.xyz@somenxavier so what's the reason? Googling "why two decimal places" didn't come up with anything!