Comments on: Desmos + Two Truths and a Lie

By: Sharee

Sharee — Mon, 14 Jan 2019 04:23:23 +0000

I’m working on 2T1L with sts today for trig graphs. We only do y=a*cos(bx) or y=a*sin(bx) in my current course, and the activity doesn’t allow for cosine graphs of that form. Is it possible to make the orange dot able to move from side to side? Right now the students are just doing sine curves.

By: Tom Triolo

Tom Triolo — Tue, 20 Nov 2018 17:29:00 +0000

Graphing Polynomials with movable x-intercepts. Allow for multiplicity of roots. Be able to graph up to quintic functions. Idea would to focus on topics such as multiplicity, end behavior and connection of roots to degree of polynomial.

By: Nicole Moran

Nicole Moran — Thu, 11 Oct 2018 13:50:00 +0000

HI Dan,

I love this activity and can’t wait for it to be available for us to create in Desmos. Is it possible to get one created for normal distributions where students can choose a mean, standard deviation, and possible interval shaded under the curve? Thank you for all you do, it is greatly appreciated :)

By: Dan Meyer

Dan Meyer — Fri, 30 Mar 2018 17:14:35 +0000

In reply to Charell W.. Nice! Thanks, Charell, for the suggestion and Cathy for the modification. One of the points is now open.

By: Cathy

Cathy — Sat, 24 Mar 2018 15:01:04 +0000

In reply to Charell W.. I love this idea, Charell, and that a Line Segments TTL activity now lives, thanks to Dan! Having an intro screen to nudge students toward concepts of domain, range, and intercepts is a nice touch. I wish there was a way for students to, say, click on an endpoint to toggle whether it's an open or closed point, with the ideas of domain and range in mind. Maybe the intro screen could have one of the endpoints be "open" as well?

By: Charell W.

Charell W. — Tue, 20 Mar 2018 14:59:54 +0000

I absolutely love this Desmos activity with the challenge creator. Is there anyway you could create one with line segments for algebra 1? I would love to be able to ask things with domain, range, slope, x-intercept, and y-intercept for my students.

By: Kelly Quinn

Kelly Quinn — Sat, 10 Mar 2018 14:22:08 +0000

In reply to Connie Rivera. I agree it is not just for primary students. Yes, it's more more primary than the others, but is a great intro for anyone!

By: Jade H

Jade H — Mon, 19 Feb 2018 01:04:52 +0000

Wow this seems like a fun activity! I would adjust it for a high school algebra 1 class.

By: 3 Things to Know: Thinking Grids, Instructional Routines, & a Re-Blog – SMCPS Secondary Math Department

Sat, 17 Feb 2018 17:50:25 +0000

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By: Norma Gordon

Norma Gordon — Fri, 16 Feb 2018 14:53:27 +0000

Looking forward to the open template version! Thinking this would be great with a WODB activity launch screen and then have student create scientific notation and/or exponent rules 2T1L challenges.