William D. Pratt School

5-9 · 9850 Royal Oak Way NW Calgary, AB T3G 0A4

BSolidRoost Rating 72.2

Achievement is down 10.6 pts since 2022. Share of students meeting Alberta's Acceptable Standard, first to latest year measured.

0.3 pts above the median CBE junior high in Calgary (median 71.9).

The methodology

The data behind this score

The Roost Rating weights AEAM above PAT, plus Roost field research, capped at 95. A missing source has its weight shared across the ones that remain, never counted as a zero. This school is rated entirely on exams.

This rating comes from one test: how this school’s Grade 6 students did on Alberta’s provincial exams. We have no survey of parents, students, and teachers for this school, and its absence does not count against the score. A test-only rating does track neighbourhood income more closely than one with survey results behind it, so ask the school what the exams do not show.

PAT

76.9% meeting the Acceptable Standard (3-yr)19.4% at the Standard of Excellence · 3-yr average exam mark 61.4%↓ 10.6 pt

Fraser (not scored)

Not ranked by Fraser

AEAM

Our AEAM survey coverage is elementary schools so far, so junior high reports aren’t included

Roost field research

No operational adjustments

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Context

Classes and enrolment

Typical class size

Grades 4 to 6: 26Typical for these grades across CBE schools: 25from 43 classes
Grades 7 to 9: 27Typical for these grades across CBE schools: 28from 84 classes

Each figure is the middle class size in those grades for 2025/26, among the classes whose sizes are published. A class is one teacher with one group of students, so a group with several teachers counts once per teacher, and in junior and senior high each course section counts. The CBE figure is the middle of every CBE school's own figure for those grades, across Alberta's release.

Students enrolled

887 students in 2025/26 (preliminary)

Enrolment moves with boundary changes, new schools nearby, the grades a school offers and how many children live close by. Most schools here had fewer students in 2020/21, the first school year of the pandemic.

Context only: these describe the school's situation, not how well it teaches, and neither is part of the Roost Rating.

Contains information licensed under the Open Government Licence – Alberta. Source: Alberta Education and Childcare.

Class sizes as of Nov 24, 2025Enrolment 2025/26 is preliminary: Alberta replaces it with final figures later.About these figures

Enrolment

How enrolment works

Grades: 5-9
Programs: Regular
Address: 9850 Royal Oak Way NW Calgary, AB T3G 0A4
Neighbourhood: Royal Oak (location, not catchment)

CBE schools are assigned by home address. William D. Pratt School is the designated junior high only if your address falls inside its catchment — confirm yours with an address lookup.

Where William D. Pratt School is

9850 Royal Oak Way NW Calgary, AB T3G 0A4

Your catchment boundary is set by your home address, not the school’s location — look up your address to confirm zoning.

Sources for William D. Pratt School: Official school page (CBE) · Survey source (SIRR, PDF) · School Development Plan (PDF)

Last updated Nov 2026 · How we score schools