Inequalities

Today in Grade 9 we worked up at the boards in random groups and we explored a new topic to many of us. We were representing inequalities on a number line. We worked from questions presented out loud e.g. “show me what x is bigger than 3 looks like on a number line”, and also in print e.g. show me x<-4, so we could work on connecting a conceptual understanding of the number line and also of the symbols and notation.

We now know that if a point is not included we draw an empty circle around it, and an arrow to one side or both, and if a point is included we fill in the circle.

We saw how we can show a region as well, here x is greater than or equal to -1 and also less than 2.

We did a lot of practice, and then levelled up to solving some simple inequalities and representing them on number lines too.

We also wrote our 6th weekly email home, and took up some questions that were tricky from the homework and quiz that we had done earlier. A good way to wrap up before March Break.