Quadratics and Complex Numbers
Hyperlinked lesson names have blog write-ups about them.
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Falling Rocks and Glowsticks
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I'll write about this one when I have some spare time.
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Penny Circle
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I use this in conjunction with Dan Meyer's Penny Circle 3 ACT lesson. I found the Penny Circle too difficult for my Algebra 1 students without a bit of scaffolding. My Algebra 2 students could do it after working with matrices. Here's the handout I use to help the students walk through the thinking process.
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After three days of working on this task, Algebra 1 students are transforming quadratic functions to fit real data. Brilliant!
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Have students come up with Quadratics
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It's a simple enough concept--have students come up with quadratic equations which match the given criteria.
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At this point, I've already introduced y=a(x-h)^2+k using desmos. My goal is to get students to use the idea of transformations to fit quadratics to messy data. For that I have three examples.
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Quadratic Posters Project - Algebra 1
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I use this as a summative assessment for my Algebra 1 classes.
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This activity is more for Algebra 2. The goal is for students to make a table of data and look at differences to tell the degree of the polynomial function. From there, students create a system of equations and solve--preferably using matrices.
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I co-opted this from 8ismyluckynumber. I made some changes to better fit my students. If your thinking about doing this with your class, I suggest reading my post about it (linked on the left).
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This was a fun crossover of physics and math class. All it takes is some meter sticks, masking tape, steel balls or large marbles and a wee bit of tech. I loved this lesson for an Algebra 2 class. It's too much for Algebra 1--even the advanced ones.
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