I'd be happy to help you create an intervention plan for your first-grade student! I have some of the information I need:

✓ Grade level: First grade
✓ Concept: Addition within 20
✓ Session length: 15 minutes, 3x per week

To design the most effective plan, I need to know a bit more about where your student is currently:

What CAN your student do with addition right now? For example:

• Can they add within 5? Within 10?
• Do they count all, or can they count on from a number?
• Can they solve addition problems with manipulatives/objects?
• Do they know any addition facts automatically?

Please share what you've observed about their current understanding!

📊 Student Profile

Your first-grade student demonstrates:

• ✓ Solid foundation: Can add within 10
• ✓ Emerging strategy: Can count on from a number
• 🎯 Growth area: Needs to extend addition strategies to work within 20

Based on the ALN Grade 1 HLC ProgressionsSubscribe to enable download links , your student is progressing well through the operations trajectory and is ready to move from addition within 10 to addition within 20.

🎯 Benchmark-Based Learning Goals

Target Benchmark:
Operations: Addition and Subtraction — All numbers within the range 1-20

Prerequisite Benchmark (for reinforcement):
Operations: Addition and Subtraction — All numbers within the range 1-10 ✓ Student can do this

Supporting Benchmarks:

• Composition and Decomposition: Students must use models to build understanding and flexibility when composing and decomposing quantities (e.g., "15 is 7 and 8 AND 9 and 6")
• Properties of Addition: Commutative Property (3 + 4 = 4 + 3)
• Developing Fact Fluency: Use understanding of combinations to 10 to find combinations to 20 (e.g., "6 + 4 = 10, so 16 + 4 = 20")

(All benchmarks from: ALN Grade 1 HLC ProgressionsSubscribe to enable download links )

⏱️ Recommended 15-Minute Session Structure

Here's how each session can be organized for maximum impact:

Warm-Up (3 minutes)

Resource: Hundred Grid Flash Visual LaunchSubscribe to enable download links

• Quick visual activity to build subitizing and counting within 20
• Ask: "How many? How do you know?"
• Supports number sense and grouping by 10s

Concept Development (5-7 minutes)

Resource: Grade 1 Task - Picking Flowers #02Subscribe to enable download links

• Problem: "Macie and Jaren picked 17 flowers. How many could each have picked?"
• Encourages part-part-whole thinking and decomposition of numbers within 20
• Student draws models to show their thinking

Alternate Resource: Grade 1 Task - Picking Flowers #01Subscribe to enable download links  (involves three friends picking 19 flowers total)

Guided Practice / Game (5-7 minutes)

Resource: Three in a Row Addition Double Digit GameSubscribe to enable download links

• Use the +9 gameboard to keep numbers within 20
• Engaging game format with a 0-9 die
• Student rolls, adds, and marks totals (like Tic-Tac-Toe)
• Reinforces counting on and mental addition strategies

🎨 Differentiation Notes

To Support Your Student:

• Use ten frames and counters during all activities to visualize teen numbers (e.g., 17 = full ten frame + 7)
• Encourage counting on by starting with the larger number (e.g., for 8 + 5, start at 8: "8... 9, 10, 11, 12, 13")
• Practice making 10 strategy: Break apart one addend to make 10 first (e.g., 8 + 5 → 8 + 2 + 3 → 10 + 3 = 13)
• Highlight connections: "You already know 6 + 4 = 10, so what is 16 + 4?"

If Student Advances Quickly:

• Increase to the 1-50 range using resources from the same game series
• Introduce subtraction within 20 alongside addition
• Use ALN Menu Journal Prompt Grade 1 #19Subscribe to enable download links  to explore connections between adding 10 and counting by 10s

📦 Materials List

• Hundred Grid Flash Visual LaunchSubscribe to enable download links
• Grade 1 Task - Picking Flowers #02Subscribe to enable download links
• Grade 1 Task - Picking Flowers #01Subscribe to enable download links  (optional alternative)
• Three in a Row Addition Game (+9)Subscribe to enable download links
• Manipulatives: Ten frames, counters, one 0-9 die, markers (X and O)
• Optional: Whiteboard/paper for student work

📈 Progress Monitoring

Method 1: Observational Checklist (Weekly)

Track during sessions:

• ☐ Student can add within 10 fluently (3/3 attempts)
• ☐ Student can count on from a larger number (3/3 attempts)
• ☐ Student can decompose teen numbers using ten frames
• ☐ Student can add within 20 using counting on (3/3 attempts)
• ☐ Student can use "make 10" strategy with support
• ☐ Student can use "make 10" strategy independently

Method 2: Exit Ticket (End of each week)

Ask student to solve one addition problem within 20 (e.g., 9 + 7) and explain their thinking. Record strategy used.

Mastery Criteria:
✅ Student can solve addition problems within 20 independently and accurately using efficient strategies (counting on or make 10) on 3 out of 3 consecutive attempts

🚀 Next Steps

When Student Meets Mastery:

• Advance to subtraction within 20 (using similar models and strategies)
• Progress to addition/subtraction within 50 (see Grade 1 HLC trajectory)
• Begin exploring two-digit addition with models

Follow-Up Concepts:

1. Subtraction within 20 (using counting back or missing addend strategies)
2. Operations within 50 (extending place value understanding)

Home Practice Resources:

• Practice "make 10" with household objects (beans, buttons, coins)
• Play simple card games where student adds cards to make totals within 20
• Use the Three in a Row game at home (just needs a die and printed gameboard)

Would you like a downloadable copy of this intervention plan? 💾

I can generate a professionally formatted HTML document with all resources, benchmarks, and tracking tools included!