Completing the Square

Grade 8Math45 min

Learning Objective

I can rewrite a quadratic expression in vertex form by completing the square.

Lesson Flow

Watch Video

7 min

Completing the square for vertex form | Quadratic equations | Algebra I | Khan Academy

Khan Academy

Practice

14 min

7 questions • Short answer

Exit Ticket

5 min

Rewrite the quadratic expression y = x² + 4x - 3 in vertex form. Rewrite the quadratic expression y = x² - 6x + 11 in vertex form.

Teacher Guide

Get the complete package:

  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts