Effective Ways to Measure the Summer Slide and Transform Data Into Improving Tier 1 Instruction

The first weeks of school come with an important question: Where are students actually starting?

After summer break, students return with different levels of skill retention. Some may be ready to move directly into grade-level work. Others may need a brief review of a prerequisite standard, while a smaller group may need more targeted support. The challenge is identifying those needs without turning the opening weeks into an extended testing window.

The best ways to measure the summer slide combine recent baseline evidence with standards-level analysis. That gives teachers a clearer picture of what students remember, where learning has slowed, and which adjustments belong in Tier 1 instruction.

What Can Drive Summer Learning Loss

Summer learning patterns are not the same for every student. A 2026 review from NWEA found that test scores often flatten or decline over the summer, with larger average drops in math than reading. The review also emphasized that estimates vary across assessments, grade levels, and individual students.

Several factors can shape what teachers see during the first weeks of school:

• Procedural fluency: Multi-step routines, computation processes, and reading fluency may become less automatic when students use them less frequently, even when some conceptual understanding remains.
• Changes in daily academic engagement: Summer schedules vary widely, so students return with different levels of recent practice, reading, and structured problem-solving.
• Unfinished learning from the prior year: Existing gaps or instructional disruptions can become more visible after a long break and may be mistaken for learning lost entirely during the summer.

Why Informal Summer Practice Is Not a Baseline

Summer reading logs, practice packets, and optional learning activities can encourage students to stay engaged. They do not provide a consistent measure of retention because participation, content, and adult support vary from student to student.

Spring assessment results also provide useful context, but they reflect performance before the summer break and may not cover every grade, subject, or prerequisite skill. Teachers need current evidence that connects directly to the standards they are preparing to teach.

What a Useful Fall Baseline Should Show

A useful fall baseline should answer three practical questions: Which prerequisite skills are secure? Which gaps are common enough to address in Tier 1? Which students need a closer look? It should also be brief enough to protect instructional time and specific enough to guide a decision. A comparable follow-up check can show whether a warm-up, scaffold, or small-group lesson helped.

5 Ways to Measure the Summer Slide with Progress Learning

1. Use Spring Data as Context, Not the Final Answer

Begin with the information already available. Spring assessment results, report cards, intervention records, and end-of-year classroom data can help teachers identify standards that may require an early check.

The key is to treat those records as a starting point. Spring results show what students demonstrated before summer break. They do not confirm what students can do at the beginning of the new school year. Comparing prior results with fresh fall evidence helps teachers identify changes in performance without assuming that every difference resulted from summer learning loss.

In Progress Learning, review available Progress Reports and prior assessment results by student, class, domain, or standard. Use those trends to select the most important skills for an early baseline check.

2. Give a Prior-Grade Subject or Domain Pre-Test

A prior-grade pre-test provides a broad view of retention. A subject-level assessment can help teams identify larger patterns, while a domain test can focus on a high-priority area such as fractions, reading comprehension, or informational text.

Keep the purpose clear. This is not an opportunity to retest every standard from the previous year. Select content that is essential to upcoming grade-level instruction, administer the assessment early, and review results before planning extensive review.

Prior-Grade Subject and Domain Tests can provide broad baseline evidence. Automated grading and results reporting allow teachers to review performance soon after students submit the assessment.

3. Build a Short Standards-Level Baseline Check

A broad pre-test may reveal the domain that needs attention, but teachers often need a more precise answer. A short check of five to ten questions can show whether students retained one or two prerequisite standards without adding unnecessary testing time.

For example, before beginning a sixth-grade unit that depends on fraction operations, a teacher might assess a small set of fifth-grade fraction standards. The results can show whether the class needs a brief warm-up, a focused small group, or no additional review.

The Assessment Builder allows teachers to select individual questions, use Question Quick Pick, or create a formative assessment with Build by Standard. Results stay connected to individual standards, helping teams identify exact prior-grade gaps without relying only on a broad composite score.

4. Use Item Analysis to Identify the Source of Errors

A percentage score tells teachers how students performed. It does not always explain why they missed a question. Two students can earn the same score while showing very different needs.

Reviewing question-level results can help teachers distinguish between a shared conceptual misconception, a procedural error, limited fluency, or a distractor that consistently confused students. That level of detail leads to more precise scaffolding and prevents teams from reteaching content students already understand.

The Item Analysis view shows percent correct, answer choices, time spent, and individual responses. Teachers can use class-wide patterns to plan a Tier 1 adjustment or identify students who need more targeted follow-up.

5. Measure the Response to Early Tier 1 Support

A fall baseline is only the first data point. To understand whether an apparent summer gap is closing, teachers should collect another brief measure after students receive focused review or grade-level instruction with appropriate scaffolds.

Use the same standard, skill type, or success criteria so the results are comparable. If performance improves after a short Tier 1 adjustment, the class may be ready to move forward. If progress remains limited, the team has stronger evidence for small-group support, intervention, or additional diagnostic review.

Use follow-up assessments and Quick-Click Remediation to respond to assessment results. Study Plans and Focus Areas provide standards-aligned practice and identify skills that need more attention as students complete work across the platform. Green Dot progress offers another view of developing mastery.

Turn Summer Slide Data Into Tier 1 Decisions

Measuring summer learning loss is valuable only when the results lead to an instructional decision. The goal is not to reteach the previous grade. It is to identify the prerequisite knowledge students need to access current grade-level work.

As teams review baseline results, consider these responses:

• Most of the class missed the same standard: If about 70% of students struggled, build a short review, warm-up, worked example, or scaffold into core instruction.
• A smaller group shows the same gap: Plan targeted small-group practice while the rest of the class continues grade-level work.
• Students demonstrate strong retention: If about 90% demonstrated mastery, skip unnecessary review and move into current content.
• Item analysis reveals different error patterns: Group students by the support they need rather than by a single overall score.
• Students do not respond to the first adjustment: Collect additional evidence and determine whether more intensive intervention is appropriate.

Measure First, Then Respond

There is no single score that captures the summer slide for every student. A useful fall baseline brings together prior-year context, a timely assessment, standards-level results, and teacher observation.

When schools measure first, teachers can protect grade-level instructional time while still addressing the gaps that matter most. Progress Learning helps connect baseline assessment, item-level analysis, targeted practice, and progress monitoring so teams can move from a broad concern about summer learning loss to specific instructional next steps.