NZ Primary & Intermediate School Maths · Year 3–8 · 1995–2024

How are NZ primary school students doing in maths?

NZ participates in TIMSS international testing every four years. Domestic sampling studies — NMSSA and Curriculum Insights — track equity gaps across year levels. The picture is consistent: most primary students are not meeting curriculum expectations.

~40th
NZ world rank
out of 58 countries (TIMSS 2023)
22%
Year 8 students meeting expectations
Curriculum Insights 2024
21 pts
decile gap at Year 8
≈ 2.5 years of learning
490
NZ TIMSS score 2023
vs intl avg 503

NZ maths performance since 1995

New Zealand has participated in TIMSS (Trends in International Mathematics and Science Study) since 1995, testing Year 5 students every four years. NZ has never reached the international average. After declining from 2003 to 2011, scores have stabilised around 487–491 — but the 2023 gender split reveals boys gained 17 points since 2019 while girls dropped 5.

TIMSS tests Year 5 students (age ~9) in February each year. International average is recalculated each cycle based on participating countries — the 1995 average includes fewer countries. AUS/ENG comparison lines are approximate from published TIMSS reports.

Where does NZ sit globally?

In 2023, NZ ranked approximately 40th out of 58 participating countries — below comparable English-speaking nations Australia (525), England (552), and the USA (517). The gap to Singapore (615) is 125 points — equivalent to roughly 3–4 years of learning.

Who falls behind — and when?

NMSSA 2022 reveals stark gaps that widen between Year 4 and Year 8. Pacific students score 12 MS units below average at Year 4 — equivalent to over 1.5 years behind. By Year 8 that gap has held at 14.6 units. The decile gap at Year 8 is 21.4 units, equivalent to 2.5 years of learning between students in low and high decile schools.

MS Scale Score is set so Year 4 = 100 and Year 8 = 100 at the 2013 baseline — the two year levels are NOT on the same scale. Each MS unit ≈ 8 weeks of learning. Source: NMSSA 2022 Report 30, Tables A2.1 and A2.2.

Three cycles of NMSSA — how has achievement shifted?

NMSSA sampled Year 4 and Year 8 in 2013, 2018, and 2022 using a common MS scale (designed so the combined 2013 baseline average ≈ 100). Between 2013 and 2018, Year 8 achievement rose by 3 MS units — a statistically significant gain. Between 2018 and 2022 it fell back by 1.3 units. Year 4 scores have remained essentially flat across all three cycles.

The 2018→2022 decline at Year 8 is sharpest for girls (−2.8 MS), Māori (−3.3 MS), and Pacific students (−4.4 MS) — widening gaps that had narrowed between 2013 and 2018.

2013 values are reconstructed on the 2018 MS scale via a linking exercise (NMSSA Report 19, Appendix 6). They differ from the original 2013 report figures. CIs for 2013 are approximated from 2018 standard errors — treat them as indicative. Source: NMSSA Reports 19 (2018) and 30 (2022).

The primary maths pipeline

Since 2023, the Curriculum Insights study (successor to NMSSA) measures what proportion of students are meeting the new NZ Curriculum provisional benchmarks. At every year level, fewer than one in three students are meeting expectations. At Year 8 in 2024, 62% are more than a year behind — and these are the students entering secondary school.

Connecting to NZQA data: approximately 65% of Year 11 students pass NCEA Level 1 Maths. The mismatch suggests significant catch-up happens — or expectations shift — between Year 8 and secondary school. These two datasets use different scales and cannot be directly compared.

See secondary maths →

These primary students go on to sit NCEA. Explore a decade of secondary maths data — equity gaps, regional trends, grade distributions, and the impact of the 2024 NCEA reform.

NZ Secondary Maths Explorer →