An open school notebook with ruled lines and a yellow pencil in warm summer light

Independent guide for parents

The summer slide, explained for parents

What the research says about summer learning loss, what is still argued over and what a family can do about it in a few relaxed minutes a day. Scroll and the notebook turns through the summer.

Prevent summer slide See the evidence

No enrollment, no ads for programs
Sources: NWEA, RAND, Brookings, IES, ALA

Page one

What is summer learning loss

Summer learning loss, or the summer slide, is the drop or stall in reading and math skills that can happen between the end of one school year and the start of the next. It is real in many datasets, especially for math, but how big it is remains contested.

It is worth knowing what is summer learning loss in detail before you decide how much effort to put into it. Older studies describe a loss of about a month of school-year learning. Newer NWEA data show a clear dip in math and almost no change in reading, and some national studies find little loss at all. The honest summary: it is common, uneven and not inevitable.

Is summer learning loss real? Yes in many tests, and no single number fits every child. That is why this guide leans on named sources with dates and says where they disagree.

A summer in four pages

The notebook through the summer

June
The last bell
Researchers compare a spring test with a fall test. Anything that happens between those two dates is what the studies call summer learning loss.
July
The quiet middle
Even the national studies that look at young children find that learning slows over summer. After kindergarten and first grade it slows without dropping, on average.
August
The math dip
On NWEA's MAP Growth test, typical math scores drop over summer in every grade from kindergarten to eighth. Reading stays almost flat.
September
The check-in
Averages hide wide gaps between children. Your child's own fall results are a better guide than any national number.

The line, drawn from real data

The math dip, grade by grade

NWEA's 2025 MAP Growth norms give the typical change in score between spring and the following fall. Math falls in every summer shown; reading hovers around zero.

Typical summer change on NWEA MAP Growth, in RIT points. Source: NWEA, Kuhfeld and Morton, What is typical summer slide on MAP Growth? (April 2026), 2025 MAP Growth norms. Averages hide wide differences between students, and other tests give different sizes. See the full table and the debate.

5weeks minimum for a summer program, according to prior research summarized by NWEA (2026)
3hours of instruction a day, in the same summary
20days of attendance after which gains appeared in the RAND and Wallace study (2016)

Page two

What parents can do

To prevent summer slide you do not need a school at home. Three small habits cover most of what the evidence supports.

Read a little, often

Fifteen to thirty minutes most days, books your child picks, a library card that gets used. See summer reading programs.

Put math in the day

Cooking, shopping, games and trips. Math is where the average dip is larger, so it earns a few short moments each week.

Keep it playful

Projects, outdoor summer learning activities and choice. If a program is an option, regular attendance matters most.

Page three

After-school enrichment

After-school enrichment is organized learning outside the school day, such as clubs, arts, science and tutoring. The benefits are plausible, the research evidence is modest and quality and attendance decide most of the outcome.

The same ideas that protect learning in summer, regular practice and engaging activities, apply during the school year. Read about after-school enrichment, including drawbacks, how to choose and how funding works.