My mystery number A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines.


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Naslov My mystery number
Opis This activity focuses on understanding numerals as representing objects or sets of objects. It addresses the distinction between using place value and not using place value. For example, in the image above, 1 and 2 are placed next to each other. This means that one puppy and two puppies are hiding. The total number of puppies hiding is three, not twelve.
Subjekt Matematika
Nivo K-5 (OŠ)
Tip Demonstracija, Guided Activity
Trajanje 30 minuta
Uključen odgovor Ne
Jezik Engleski
Ključne riječi 1:1 correspondence, cardinality, counting, place value
Simulacije Igre sa brojevima (HTML5)


Autori: Ian Whitacre, Dom Carorora, Azar Kamaldar
Škola / Organizacija Florida State University
Poslato 9/11/23
Obnovljeno 10/14/23