Common IEP Mistakes

Top 3 Key Takeaways

1. IEP goals often fail when they are vague, not measurable, or not aligned to true present levels of performance (PLAAFPs).
2. High-quality diagnostic data—such as the data produced by DORA and ADAM—helps educators write accurate, standards-aligned, skill-specific goals.
3. Ongoing data monitoring ensures that instruction stays responsive and keeps students progressing toward meaningful annual growth.

Educators know that strong, actionable IEP goals are foundational to student progress. Yet national audits consistently show that many IEPs fall short because goals are unclear, not tied to accurate data, or not matched to a student’s instructional needs (U.S. Department of Education, 2020).

Fortunately, this is a problem that high-quality diagnostic data can solve. Tools such as Let’s Go Learn’s (LGL) DORA and ADAM assessments provide granular insights across foundational reading and math subskills, helping teachers write goals that truly reflect what learners can do—and Let’s Go Learn’s incredible, time-saving AI Assistant, Airma, can draft those goals for you to review, improving your compliance and consistency.

A high-quality PLAAFP must describe specific academic strengths and needs. Yet many IEPs rely on broad statements such as “struggles with comprehension” or “has difficulty with number sense.”

This is where diagnostic detail becomes essential.  For example, DORA provides grade-level scores across seven sub-tests, including vocabulary, comprehension, phonics, and spelling. The results allow teachers to pinpoint exactly what a student has mastered and where gaps exist. Grade-level scores also show whether a student is below, at, or above mastery across each subskill.

Similarly, the ADAM assessment breaks mathematics into 44 sub-tests across five strands, showing precise strengths and deficits in areas such as decimal operations, percentages, fractions, and geometry concepts.

Why it matters:
A well-described PLAAFP anchored in real data becomes the foundation for writing measurable IEP goals. Without it, goals often miss the mark.

Vague goals—such as “will improve reading” or “will understand fractions”—don’t provide teachers, families, or students with clarity. They also undermine progress monitoring.

Data, however, makes specificity simple. For instance, a student may score high in vocabulary but low in comprehension, which would shift goal writing toward inferential comprehension or passage-level reasoning, not general “reading improvement.”

Likewise, ADAM might reveal mastery in whole-number operations but non-mastery in measures of central tendency or area and perimeter. These results directly inform which measurable skills should be targeted.

IEP goals must sit at the “just right” instructional level—not too easy, not too difficult. Let’s Go Learn’s diagnostics are specifically built to identify each student’s ZPD and their next instructional step. LGL assessments:

• Identify learning gaps and strengths, regardless of each student’s assigned grade
• Operationalize personalized learning
• Create IEP-ready reports that reduce teacher prep time by 50%

When goals are misaligned with the ZPD, students either stagnate or become overwhelmed.
With accurate instructional placement data, teachers can avoid inappropriate goals and move confidently toward targets that truly promote growth.

Standards alignment ensures that IEP goals support grade-level expectations while honoring a student’s current academic level.

ADAM’s Standards Mastery tool lets teachers see exactly which standards students are ready to learn and which foundational skills must be strengthened first.

For struggling learners—whether two years behind or five—this alignment prevents a common error: setting goals that are either too advanced or not academically meaningful.

A beautifully written goal is meaningless without consistent monitoring.

Let’s Go Learn’s progress-monitoring system gives educators one-click snapshots and growth charts tied directly to the student’s diagnostic profile. This allows weekly or monthly checks, depending on need, without creating new assessments.

Teachers can monitor the rate of improvement, revisit learning paths, and adjust SDI (specially designed instruction) in real time.

Why this matters:
Progress monitoring is not paperwork—it is instruction. It tells educators whether the plan is working.

A common oversight occurs when educators look only at “big” skills. For example:

• Students with weak spelling skills often avoid complex vocabulary in writing.
• Students lacking early measurement or geometry foundations struggle later with multi-step word problems.

When teachers drill down into sub-tests, they can incorporate supportive goals that build the scaffolding necessary for long-term success.

Families want clarity, not jargon. The Parent Letter included with Let’s Go Learn implementations explains DORA, ADAM, and Edge in accessible language and helps parents understand how data drives instruction.

Clear communication builds trust—and collaboration is the heart of strong IEP implementation.

Diagnostic tools like DORA, ADAM, and LGL Edge offer educators:

• accurate PLAAFPs
• accurate understanding of specific student strengths/weaknesses
• standards-aligned instructional paths
• measurable subskill targets
• ongoing progress monitoring
• time savings in the IEP development process

In short: data eliminates guesswork. It empowers educators to write goals that matter, helps families understand those goals, and creates a pathway for students to achieve them.