Analyzing the Discriminant

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This instructional activity provides excellent practice in analyzing the discriminant of a quadratic equation. It contains six quadratic functions. For each function, learners find the roots of the equation, compute the value of the discriminant, state the nature of the roots, sketch a graph of the function, and state the number of x-intercepts of the graph. The instructional activity is organized in table form, which helps pupils recognize how the value of the discriminant determines the nature of the roots of a quadratic equation and the number of x-intercepts of its graph. The instructional activity can be used in a variety of ways, including independent practice to reinforce concepts, guided practice working in groups, or as a review activity. It would also be good to use as part of an introductory lesson on analyzing the discriminant.

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CCSS: Designed
Resource Details

8th - 12th
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Resource Types
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For Teacher Use
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1 hr
Instructional Strategies
Direct Instruction
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