Building Number Patterns

Objective

Students will use their understanding of place value and patterns to add and subtract multiples of 10 from any number within 1,000. They will identify, describe, extend, and create numerical patterns to enhance their computational skills.

Curriculum Standards

• 2.MP: Display perseverance and patience in problem-solving.
• 2.NR.2: Apply part-whole strategies and properties of operations for real-life problems involving addition and subtraction within 1,000.
• 2.PAR.4: Identify, describe, extend, and create numerical patterns.

"I Can" Statements

• I can add and subtract multiples of 10 from any number within 1,000.
• I can recognize patterns when adding and subtracting multiples of 10.

Materials Needed

• Diagnostic Assessment
• 1-200 Chart
• 600-1000 Chart
• Student Copy - A Day At The Arcade

Time Duration

50 minutes

Lesson Breakdown

1. Introduction (5 minutes)

• Greeting: Begin by welcoming the students and engaging them with a quick warm-up question relevant to addition and subtraction.
• Objective: Explain today’s objective: We are learning to add and subtract multiples of 10, and finding patterns in numbers.

2. Diagnostic Assessment (5 minutes)

• Purpose: Quickly assess the students' prior knowledge by distributing a short diagnostic assessment. This should involve a few problems involving addition and subtraction of tens.
• Outcome: Gauge readiness for today’s lesson and identify any students who might need extra support.

3. Guided Instruction (10 minutes)

• Introduction to Thousands Chart: Show students a 1-200 chart and a 600-1000 chart. Discuss how these charts help us find patterns.
• Pattern Recognition: Work through a few examples with the class using the thousands chart. For example, start with 250 and discuss how adding 10 moves you down one row and subtracting 10 moves you up a row.
• Discussion: Highlight how similar patterns exist in the larger chart (600-1000).

4. Hands-on Practice (15 minutes)

• Activity: Distribute the "Student Copy - A Day At The Arcade" activity. Students will apply their skills to “win points” by solving problems that involve adding and subtracting multiples of 10.
• Guidance: Circulate around the room to provide support, prompting students to use skip-counting strategies and patterns observed in the charts.
• Challenge: Encourage students who breeze through the activity to investigate additional patterns, such as adding and subtracting 20s or 30s.

5. Partner Activity (10 minutes)

• Instructions: Pair students and have them create a fun story by picking numbers within 1,000 and using multiples of 10 to add or subtract in their narrative. They should use at least three different operations with multiples of 10.
• Sharing: Ask a few pairs to share their stories with the class, emphasizing the pattern recognition aspect.

6. Closure (5 minutes)

• Reflection: Gather students together and ask questions like "What happens when we add 20 to a number?" or “How can you show 50 using the hundreds chart?”
• Feedback Loop: Revisit today’s objective and the "I Can" statements. Have students use thumbs up/down to reflect on their understanding.

7. Assessment

• Observation: Observe students’ participation during activities and partner work.
• Take-home task: A simple worksheet reinforcing today’s concepts for students to complete as homework.

Teacher's Note

Encourage students to explain their thinking process. Prompt them with questions like "What did you notice?" or "Why do you think that happens?" to deepen their understanding of numerical patterns.