How can you draw a number? A set of questions takes learners through the reasoning for why a geometric construction can be drawn to represent the square root of a number. An interactive helps visualize the construction.

Concepts

radicals, radical equations, geometric constructions, square roots

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Additional Tags

math

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Instructional Ideas

• Use the review problems as a homework assignment (provide a printout if learners do not have Internet access)

Classroom Considerations

• Need to set up free account at CK-12
• Pupils need familiarity with similar triangles and angle relationships for triangles inscribed in a circle

Pros

• Provides hints for some of the challenge questions
• Color coding helps keep track of different line segments

Cons

• Contains some minor typos

Common Core

HSA-REI.A.2