# One to One Correspondence: The Hidden Challenge in Learning to Count

Page: https://stenobird.com/podcast/thinking-deeply-about-primary-education-3470150/one-to-one-correspondence-the-hidden-challenge-in-learning-to-count
Text version: https://stenobird.com/podcast/thinking-deeply-about-primary-education-3470150/one-to-one-correspondence-the-hidden-challenge-in-learning-to-count.md
Podcast: [Thinking Deeply about Primary Education](https://stenobird.com/podcast/thinking-deeply-about-primary-education-3470150)
Published: 2026-03-21T04:43:00+00:00
Episode link: https://podcasters.spotify.com/pod/show/kieran-mackle/episodes/One-to-One-Correspondence-The-Hidden-Challenge-in-Learning-to-Count-e3god4t
Audio file: https://anchor.fm/s/45dcc8b0/podcast/play/117240413/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2026-2-20%2F420449956-44100-2-b42b3ff0f6a33.mp3
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JSON: https://stenobird.com/v1/public/podcasts/thinking-deeply-about-primary-education-3470150/episodes/one-to-one-correspondence-the-hidden-challenge-in-learning-to-count
Duration seconds: 1792

## Resource

For show notes, links, and a summary episode, sign up for the ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Hey! What You Reading For ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ newsletter. Mondays at 7am BST - ⁠⁠⁠https://tdape.beehiiv.com/subscribe⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠AI For Teachers⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ newsletter For maths curriculum questions contact us ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠here⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ or via ⁠⁠⁠support@alta-education.com⁠⁠⁠ Learn more about ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠The Story of Maths⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ - ⁠⁠⁠www.alta-education.com/tsom-overview⁠⁠⁠ Episode 280: Counting can look simple from a distance, but for many children it is anything but. In this episode, I explore one to one correspondence: the idea that each object counted must be matched to one number word, and one number word only. I look at why this principle matters so much in early mathematics, what it can look like when it is not yet secure, and how careful scaffolding can help children move from fragile, inaccurate counting towards greater independence and confidence. Drawing on classroom practice, I explore how teachers can use modelling, manipulation, arrangement, and formative assessment to make the structure of counting more visible. I also reflect on what this tells us about effective scaffolding more broadly: not as a way of lowering demand, but as a way of making important mathematics learnable. This episode will be particularly relevant for early years and primary teachers thinking carefully about the foundations of number and how to support children when counting begins to break down.

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