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


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سه‌ردێر My mystery number
Description 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.
Subject بیرکاری
ئاست K-5
Type Demonstration, Guided Activity
Duration 30 خوله‌ک
Answers Included نا
زوان English
Keywords 1:1 correspondence, cardinality, counting, place value
شێوه‌کاریه‌کان Number Play (HTML5)


نووسه‌ران Ian Whitacre, Dom Carorora, Azar Kamaldar
قوتابخانه‌/ ڕێکخراو Florida State University
ناردراو 9/11/23
به‌ڕۆژ بوه‌ 10/14/23