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


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Tittel Ten and how many more?
Beskrivelse 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.
Emne Matematikk
Nivå Barneskole
Type Guided Activity
Varighet 30 minutter
Svar inkludert Nei
Språk English
Nøkkelord 1:1 correspondence, cardinality, compose, counting, decompose, place value, ten frame
Simuleringer Number Play (HTML5)


Forfattere Ian Whitacre, Dom Carorora, Azar Kamaldar
Skole / Organisasjon Florida State University
Lastet opp 11.09.23
Oppdatert 14.10.23