Subtraction stories A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines.


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Tittel Subtraction stories
Beskrivelse Students are given subtraction story problems to solve. Specifically, the problem types are Take From, Result Unknown, or Compare Difference Unknown. They use the tools available on the Lab screen to help them solve and/or to represent their thinking (e.g., if they solve mentally or on their fingers).
Emne Matematikk
Nivå Barneskole
Type Guided Activity
Varighet 30 minutter
Svar inkludert Nei
Språk English
Nøkkelord add on, compare, compose, decompose, result unknown, subtraction, take away
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