#Desmos graphing inequalities how to
#Desmos graphing inequalities full

I got focused on that and kind of forgot to check our solutions, so that obviously wasn’t ideal… Apparently some of my students have a lot of trouble writing basic inequalities from number lines?!? This was a surprise, and actually probably the biggest struggle of the day. Desmos is great for graphing inequalities, especially when they.

#Desmos graphing inequalities how to

More focus on writing distance statements in words and writing final solutions as inequalities without absolute value. This video shows how to use graphing calculator to graph systems of inequalities. Did a Google form warm-up to see what the understanding level was after the activity the previous day.

#Desmos graphing inequalities full

Is there a way without going full screen graphing Calculator Graphing Inequalities Activity Builder by Desmos. I can graph lines but not inequalities like 3x + 2y < 7. Students filled out a summary handout at the end of the activity and checked it with my key as their wrap-up for the day.Įxtended from the previous day’s activity to talk about solving more complex absolute value inequalities. From All my searching I have figured out a solution to this.

Kept everyone paced together and drew some summaries on the board as we went along. Again, slightly too long in first hour, but better. Heres a quick video tutorial on using integrals in the Desmos Graphing. Worked through a Desmos Activity on absolute value inequalities. Unless you are graphing a vertical line the sign of the inequality will let you. We never used the procedure of “make one positive equation and one negative equation and solve.” I liked it! I had students write a distance statement for each equation and solved everything with number lines (decided to do this the morning of the lesson). We worked through some examples together. This is happening with all the other inequalities on screen 2. For example the inequality x + 2y < 100, a dotted line should go through the point (0, 50), instead it is going through (0, 49.5). They did have a worksheet to practice the ideas with as homework.Įxtended from the previous day’s activity to talk about solving more complex absolute value equations (where the coefficient on the variable wasn’t just 1, or the absolute value quantity had to be isolated first). Hi I am trying to figure why the inequalities that appear in the table on screen 3 are graphing incorrectly. It was a bit of a mess first hour (to long), but I modified it for sixth hour and kept students paced together as a class instead of letting them work at their own speed.

We worked through a Desmos Activity giving students a refresher on the definition of absolute value and an intro to solving basic absolute value equations. I’m getting closer, but (as always) it isn’t quite there yet. I’ve been trying to move away from procedure and really focusing on absolute value as a measure of distance. I’ve been slowly modifying the way I teach absolute value equations and inequalities.