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Develop your students’ graphing abilities with this multi-day series of quadratic function challenges:
Lesson Notes
Several weeks ago I shared a series of linear graphing challenges. The results in my classes (even my “advanced” classes) were wonderful. What follows below is a set of 10 “Match My Parabola” challenges.
Collectively, the goal is to develop student proficiency with graphing quadratic functions in vertex form, factored form, and standard form. While sliders are appropriate (especially in the early going), students will develop a stronger and deeper connections between the numerical, graphical, and algebraic representations if they enter the functions without sliders.
Here’s a recap of three options for implementing this style of challenge:
- Display the slide image (graph plus brief directions, included below) via projector and have students work on a new Desmos graph
- Direct students to the graph URL (included below)
- Print a copy of the slide image and have students work with pencil and paper only
Again, depending on your classroom situation, you may find that one of those works better than another. My preference is for #1-2.
Also, though I typically advocate for 2:1 computing with almost all Desmos activities (2 students, 1 device), for this series of challenges I would recommend a 1:1 setup. Student collaboration is still a valuable element of this lesson, but requiring every student to apply what they’re discussing to their own Desmos graph has proved useful with each of my classes.
One final note before we get to the goods: This is not intended to be a single lesson, but rather 10 separate mini-challenges. Depending on your students, the challenges may take anywhere from 2 to 20 minutes (or even longer). To keep this format fresh, and to keep students engaged, I recommend a “short and sweet” approach, rather than packing several challenges into a graph-matching-marathon.
Match My Parabola #1
https://www.desmos.com/calculator/m083poazwx
Match My Parabola #2
https://www.desmos.com/calculator/cyh2dlekyr
Match My Parabola #3
https://www.desmos.com/calculator/c93eqhfqwk
Match My Parabola #4
https://www.desmos.com/calculator/ehdogua8de
Match My Parabola #5
https://www.desmos.com/calculator/nqz3afgbe5
Match My Parabola #6
https://www.desmos.com/calculator/kfjvxj70ze
Match My Parabola #7
https://www.desmos.com/calculator/qlmvioixym
Match My Parabola #8
https://www.desmos.com/calculator/lhubev4agm
Match My Parabola #9
https://www.desmos.com/calculator/e9kvhjcttk
Match My Parabola #10
https://www.desmos.com/calculator/riayohzxbk
Extensions
- Create your own “Match My Parabola” challenge (related to vertex form).
- Create your own “Match My Parabola” challenge (related to factored form).
- Create your own “Match My Parabola” challenge (related to standard form).
Resources
- All images (.zip)
- Direct Desmos links (for sharing with students): bit.ly/rw-match-my-parabola
Standards
- CCSS 8.F.B
Define, evaluate, and compare functions. - CCSS HSF.IF.C
Analyze functions using different representations. - CCSS HSF.LE.A
Construct and compare linear, quadratic, and exponential models and solve problems.
Shout Outs
More Lessons
Looking for more lessons? Click here.
Comments 2
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this is such good stuff!
Pingback: Match My Line • Create Your Own | Reason and Wonder
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