Geometry is one of the oldest fields in mathematics. It developed from the 'act of measuring' or 'for the purpose of measuring.' So, what does it mean 'to measure' in geometry? A mathematician and a ...

Create your own centimeter ruler. Then, estimate and measure with lengths with it. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through ...

The problem of undertaking inference in the classical linear model when the covariates have been measured with error is investigated from a geometric point of view ...