Using the Quadratic Formula – Color by Number Activity

Give your Algebra 2 students meaningful practice with solving quadratic equations using the quadratic formula — in a format they’ll actually enjoy! This engaging color-by-number activity includes 18 problems, including quadratic equations that require rearranging into standard form and solving with real and imaginary solutions. Students will also analyze the discriminant to determine the number and type of solutions.

This double-sided worksheet helps reinforce procedural fluency while keeping students focused and motivated. Great for homework, partner practice, sub plans, or a fun review day!

✏️ Skills Covered:

• Use the quadratic formula to solve quadratic equations
  
• Simplify radical expressions
  
• Identify real and complex solutions
  
• Calculate and interpret the discriminant
  
• Rearranging equations to standard form (ax² + bx + c = 0)
  

Standards Alignment:

Common Core Math Standards:

• HSN-CN.A.1: Know there is a complex number i such that i² = –1, and every complex number has the form a + bi.
  
• HSN-CN.A.2: Use the relation i² = –1 and the commutative, associative, and distributive properties to add, subtract, and multiply complex numbers.
  
• HSA-REI.B.4: Solve quadratic equations in one variable.
  
• HSA-SSE.B.3: Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression.
  

What's Included:

• 15 quadratic equations to solve with the quadratic formula
  
• 3 discriminant problems
  
• Color key with simplified radical and decimal answers
  
• Answer key included
  
• Print-ready PDF (non-editable)
  

Clipart by: Haydeé Fernández

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Please remember:

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