Multi-Digit Addition Practice

Grade Level

6th Grade Special Education Resource Class

Duration

30 minutes

Unit

Mastering Multi-Digit Operations (Lesson 2 of 12)

---

Common Core State Standards Addressed

CCSS.MATH.CONTENT.6.NS.B.2
Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation.

---

Learning Objectives

By the end of this lesson, students will be able to:

• Accurately solve multi-digit addition problems using both manipulatives and calculators.
• Demonstrate understanding of place value in multi-digit numbers during addition.
• Employ strategies to check their answers for reasonableness.

---

Materials Needed

• Base-ten blocks or place-value disks
• Whiteboards and dry erase markers
• Handheld calculators (one per student)
• Dyslexia-friendly large print addition problem cards (clear fonts, high contrast)
• Visual number line posters
• Magnifiers (optional) for students who need help reading numbers

---

Lesson Procedure

1. Warm-up / Review (5 minutes)

• Activity: Quick oral review of place value terms (ones, tens, hundreds, thousands, etc.)
• Strategy: Use color-coded place value charts on whiteboard; highlight each place value as students answer related questions
• Differentiation: Use dyslexia-friendly fonts and colored overlays for students who have difficulty with traditional text

---

2. Guided Practice with Manipulatives (10 minutes)

• Activity: Demonstrate adding two multi-digit numbers as a class, modeling step-by-step decomposition and recomposition using base-ten blocks
• Students will work in pairs to solve 3 addition problems using the manipulatives provided
• Encourage students to verbalize their thought process aloud to reinforce understanding
• Differentiation:
  • Provide sentence starters/prompts on cards for students who struggle with articulation (e.g., “I add ____ + ____ because...”)
  • Allow more time for students needing extra processing or one-on-one support
• Dyslexia-friendly tips: Use tactile manipulatives and visual supports to reduce cognitive load

---

3. Calculator Integration Practice (8 minutes)

• Activity: Introduce the calculator as a tool to check answers, not replace the thinking process
• Assign each student 2 multi-digit addition problems to solve first on whiteboards then check on calculators
• Emphasize reading numbers carefully from the calculator screen using dyslexia-friendly reading strategies (e.g., magnifiers or color overlays)
• Reflection: Ask students how the calculator helps them and discuss when to rely on mental math versus checking with technology
• Differentiation:
  • Pair stronger students with those needing support for peer coaching
  • Offer extra practice problems for fast finishers

---

4. Independent Practice & Exit Ticket (5 minutes)

• Students work independently to solve 2 multi-digit addition problems from dyslexia-friendly problem cards
• Submit answers on individual mini whiteboards to teacher for quick formative assessment
• Include at least one problem with decimal addition to align with 6.NS.B.2 standard and prepare for future lessons

---

Assessment

• Teacher observation during guided and calculator practice activities
• Quick exit ticket problems evaluated for accuracy and use of place value understanding
• Use formative assessment data to plan targeted small-group support in next lessons

---

Differentiation Strategies for Diverse Learners

• Small group/co-teaching model with paraprofessional support as needed
• Use of manipulatives and calculators to accommodate different learning preferences
• Dyslexia-friendly materials:
  • Clear, sans-serif fonts (e.g., OpenDyslexic or Arial)
  • High contrast color schemes for printed materials and whiteboards
  • Reduced visual clutter on problem cards
• Frequent checks for understanding with verbal and visual cues
• Extended time and repeated directions as needed

---

Reflection/Notes for Teacher

• Monitor which students rely heavily on calculators and reinforce mental computation strategies gently in future lessons.
• Encourage students to explain their methods to promote deeper conceptual understanding.
• Adjust pacing based on student engagement and success during activities.

---

This lesson balances hands-on and technology-based learning while meeting the CCSS for 6th grade mathematics, with a special emphasis on accessible instruction tailored to diverse learners in a special education context.