Numbers generally emerged from the practical need to express measurement. From counting numbers to whole numbers, to the set of integers, and to the rational numbers, we have always been
Category: Algebra
Teaching with GeoGebra – Investigating coordinates of points
The most basic mathematics students need to know to understand GeoGebra is the coordinate axes. Must you teach students how to plot points and interpret coordinates of points before they use
Teaching simplifying and adding radicals
The square root of a number is usually introduced via an activity that involves getting the side of a square with the given area. For example the side of a square
Teaching with GeoGebra: Squares and Square Roots
This post outlines a teaching sequence for introducing the concept of square roots in a GeoGebra environment. Of course you can do the same activity using grid papers, ruler and calculator.