My mystery number Auksinė žvaigždė pažymi aukštos kokybės, vartotojų apklausomis paremtas veiklas, sukurtas pagal PhET dizaino gaires.


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Pavadinimas My mystery number
Aprašymas 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.
Tema Matematika
Lygis K-5
Tipas Demonstracija, Guided Activity
Trukmė 30 minutės
Įtraukti Atsakymai Ne
Kalba Anglų
Raktažodžiai 1:1 correspondence, cardinality, counting, place value
Simuliacija(-os) Number Play (HTML5)


Autorius (-ai) Ian Whitacre, Dom Carorora, Azar Kamaldar
Mokykla / Organizacija Florida State University
Pateikimo data 23.9.11
Data atnaujinta 23.10.14