Tag Archives: Desmos

Desmos Puppy House

By Fawn | Published: May 14, 2015

We don’t cover quadratic in Math 8 this year, so we really can’t do Des-man. I come up with “Puppy House” instead so my students can still create something that allows them lots of practice with writing linear equations with domain and range restrictions. They draft the house on paper. The house needs to have a minimum of 6 […]

Posted in Algebra, Math 8 | Also tagged domain, graphing linear equations, graphing parabola, linear equations, quadratics, range | 3 Responses

Teaching Absolute Value

By Fawn | Published: March 18, 2014

I know Common Core does not have absolute value in grade 8, but I’m teaching it anyway because we’re still doing “algebra 1” this year. (A year ago Raymond Johnson looked into the inclusion of this topic in the different grade levels.) My 8th graders know that the absolute value of 5 is 5, and the absolute […]

Posted in Algebra | Also tagged absolute value, distance, inequalities, number line, open sentences | 1 Response

Vroom Vroom

By Fawn | Published: October 11, 2013

I normally share a lesson that I’ve already done with students, but I’m still tweaking this one and needing to write some thoughts down before my noggin turns back into soft tofu. I bought these 14 pull-back friction toy cars (2 sets) for $30 at Costco. Amazon posts a video of how well these soft squeezable cars […]

Posted in Algebra | Also tagged extrapolate, friction toy cars, parabola, quadratic functions | 6 Responses

Des-man

By Fawn | Published: March 21, 2013

Just how fabulous is Desmos. Following up on last Friday’s lesson, I had the kids create “Des-man” on Desmos. I made these very simple sketches, showed them to the kids, and told them the minimum requirements: face and mouth must be parabolas eyes and nose are linear equations Not only was this so great to reinforce slope, y-intercept, and all the coefficients, it also […]