Last year, our math standards were revised. In that, I now get to teach my Algebra 2 students how to write in interval notation. Honestly, I strongly prefer interval notation and I'm so glad we could end the inequalities!

This notes page was taken from A Nelson Math. I reformatted to include practice problems on the bottom.

I had students tape the top page down so that they could flip it up. Underneath, I had them draw a table. On the table, they wrote the interval in words, drew a number line, wrote in interval notation, and wrote in inequality notation. It helped my students so much to be able to see the four versions together. My students still struggled with things like x =/ 0, so I want to maybe do four or five example lines next year.

This notes page was taken from A Nelson Math. I reformatted to include practice problems on the bottom.

I had students tape the top page down so that they could flip it up. Underneath, I had them draw a table. On the table, they wrote the interval in words, drew a number line, wrote in interval notation, and wrote in inequality notation. It helped my students so much to be able to see the four versions together. My students still struggled with things like x =/ 0, so I want to maybe do four or five example lines next year.