Ten and how many more? A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines.


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Otsikko Ten and how many more?
Kuvaus This activity focuses on grouping sets of objects into tens and ones and interpreting two-digit numerals as representing a number of tens and a number of ones. The goal is to help students develop a meaningful understanding of place value, focusing on numbers 10–20.
Aihe Matematiikka
Taso K-5
Tyyppi Guided Activity
Kesto 30 minuuttia
Vastaukset mukana Ei
Kieli Englanti
Avainsanat 1:1 correspondence, cardinality, compose, counting, decompose, place value, ten frame
Simulaatiot Numeropeli (HTML5)


Tekijät Ian Whitacre, Dom Carorora, Azar Kamaldar
Koulu / organisaatio Florida State University
Lähetetty 11.9.2023
Päivitetty 14.10.2023