Get two answers from a single equation. Pupils use the interactive to take the square root of nine and see the graphical representation of the two solutions. Individuals realize that solutions to quadratic equations that are solved by taking the square roots mostly come in pairs.

Concepts

square roots, quadratic equations, solving quadratics, algebraic equations

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Additional Tags

math

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Instructional Ideas

• Lead a discussion about the square roots of negative numbers
• Encourage class members to learn to recognize perfect squares

Classroom Considerations

• The class should understand square roots
• Must create a free account before accessing the interactive

Pros

• Includes hints
• The additional reference contains examples

Cons

• None

Common Core

HSA-REI.B.4.a HSA-REI.B.4.b HSF-IF.C.8.a