Introduce students to standard deviation with this clear, accessible lesson that unpacks one of the most important measures of variability. Designed for Algebra 1 classrooms, this resource helps students build a conceptual understanding of spread in data—and how to use technology to calculate it efficiently.

What’s Included:

Student Handout:

• Warm-up activity to review prior knowledge of data variability
  
• Guided practice interpreting and reasoning about standard deviation
  
• Scaffolded problems that connect conceptual ideas to calculator/computer use
  
• Multiple versions of the cool-down for flexible formative assessment
  
• Complete answer key for easy grading
  

Foldable Notes:

• Student-friendly, interactive foldable for notebooks or journals
  
• Breaks down key vocabulary, formulas, and interpretation of standard deviation
  
• Great for visual learners and long-term retention
  

Presentation Slides:

• Visual explanations of standard deviation in context
  
• Step-by-step examples showing how to compute it with technology
  
• Fully editable to meet your pacing and classroom needs
  

Learning Objectives:

• Describe standard deviation as a measure of variability
  
• Use technology to compute standard deviation for a given data set
  

Why You’ll Love This Resource:

• Standards-Aligned: Meets Common Core standards S-ID.A.1 & S-ID.A.2 and supports Mathematical Practice MP2
  
• Flexible & Editable: Perfect for whole-group instruction, tech-based stations, or independent learning
  
• Student-Centered: Supports engagement and deeper understanding with hands-on notes and real-world examples
  

Make standard deviation stick with interactive, student-friendly tools. This complete lesson—now with foldable notes—helps your students grasp variability with confidence and clarity.