| States Maya subtracted bottom from top; models 502 → 4 hundreds, 9 tens, 12 ones; gives 235. |
| 3 - Proficient |
| (Mastery Level) | Identifies error + accurate calculation + model OR written explanation | Rejects Maya's claim; shows correct difference (235); explains that regrouping across 0 was needed. |
| 2 - Developing | Identifies error but computation is flawed or explanation is incomplete | States Maya is wrong but makes arithmetic error or gives vague explanation without model. |
| 1 - Emerging | Agrees with Maya or gives irrelevant calculation without reasoning | Fails to recognize subtraction place value error; cannot explain regrouping requirement. |
IEP Progress-Monitoring Decision Framework Apply after each 3-probe cycle
• Goal Met / Maintenance: 3 consecutive data points at ≥80% (Computation & Facts), ≥75% (Word Problems), or 3/4 opportunities (Reasoning). Transition to bi-weekly maintenance.
• Progressing on Aimline: Positive slope toward IEP annual benchmark. Continue Tier 2 specialized instruction and keep current accommodations active.
• Instructional Change Rule: 3 consecutive points below aimline requires documented pedagogical modification: place value manipulatives, explicit schema instruction, or rate drills.
| Type |
|---|
| Info |
|---|
| Op |
|---|
| Model |
|---|
| Total |
|---|
| % |
|---|
| 1&2 Step | /2 | /2 | /2 | /8 | % | |
| 1&2 Step | /2 | /2 | /2 | /8 | % | |
| 1&2 Step | /2 | /2 | /2 | /8 | % | |
| 1&2 Step | /2 | /2 | /2 | /8 | % |
Accommodations: [ ] Visual Organizer [ ] Key Highlight Avg: ___%
Target: 3 of 4 opportunities across 4 consec. wks
3/4 Opps
| Consec. Week | Opp 1 | Opp 2 | Opp 3 | Opp 4 | Success | Met? |
|---|---|---|---|---|---|---|
| Week 1: | [ ] | [ ] | [ ] | [ ] | / 4 | [ ] Y [ ] N |
| Week 2: | [ ] | [ ] | [ ] | [ ] | / 4 | [ ] Y [ ] N |
| Week 3: | [ ] | [ ] | [ ] | [ ] | / 4 | [ ] Y [ ] N |
| Week 4: | [ ] | [ ] | [ ] | [ ] | / 4 | [ ] Y [ ] N |
Mode: [ ] Equation [ ] Drawing [ ] Written 4-Wk Met: [ ] YES
Aimline (80% / 75%) Student Data Point
100%
80% Target Mastery Line (80%)
75% Word Problem Goal (75%)
50%
0%
Base
P-1
P-2
P-3
P-4
P-5
P-6
P-7
P-8
Clinical Field Notes & Instructional Modifications:
Special Educator Signature:
Date IEP Progress Updated:
Status: [ ] Progressing [ ] Mastered [ ] Needs Change
Total: 8 Points (Pass = 6)
Problem A (1-Step): Library Books (245 science + 178 fiction) Full Credit: 4/4 Pts
1. Information Identified (1 pt):
• Known: 245 science, 178 fiction
• Find: Total books received
Operation (1 pt):
• [ X ] Addition (+)
2. Visual Strip Model (1 pt):
Total Books [ ? = 423 ]
Science: 245 Fiction: 178
Part-Part-Whole schema correctly represented
3. Equation & Unit (1 pt):
245 + 178 = 423
Answer: 423 books
Requires unit "books" for full credit.
Problem B (2-Step): Diego's Markers (6 packs × 8 markers − 15 shared) Full Credit: 4/4 Pts
Step 1: Total Markers Bought (2 pts)
• Op Selected: Multiplication (×) [Equal groups schema]
Equation 1: 6 × 8 = 48 markers
[ 8 ] [ 8 ] [ 8 ] [ 8 ] [ 8 ] [ 8 ] = 48 total
Step 2: Markers Remaining (2 pts)
• Op Selected: Subtraction (−) [Change-decrease schema]
Equation 2: 48 − 15 = 33 markers
Final Answer: 33 markers
Rubric Benchmark: 4/4 (Pass = ≥3)
Scenario Diagnosis: Maya incorrectly subtracted smaller digits from larger digits without regrouping across zero (calculated 7−2=5, 6−0=6, 5−2=3 to reach 365).
1. Base-10 Decomposition Model (1 pt):
502 = 5 Hund, 0 Tens, 2 Ones
• Regroup 1 Hund → 10 Tens (4 Hund, 10 Tens)
• Regroup 1 Ten → 10 Ones (4 Hund, 9 Tens, 12 Ones)
12 − 7 = 5 Ones • 9 − 6 = 3 Tens • 4 − 2 = 2 Hund
Accepts quick base-10 sketches (squares, sticks, dots).
2. Standard Equation & Calculation (1 pt):
502 − 267 = 235
3. Full-Credit Written Explanation Exemplar (2 pts):
"Maya is incorrect because you cannot subtract 7 from 2 without regrouping. Instead of regrouping from the hundreds place across the zero, she flipped the digits and subtracted 2 from 7. The correct difference is 235 because 502 decomposes into 4 hundreds, 9 tens, and 12 ones."
Partial Credit (1 pt written): Identifies error but misses decomposition steps. Mastery Met if Total ≥ 3 Pts
IEP Reporting Standard: Record percentage and rubric scores directly onto the Goal Tracker Data Sheet.
Calibrated to IDEA Objective Mastery Thresholds
