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


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Título Ten and how many more?
Descrição 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.
Assunto Matemática
Nível Ensino Primário
Tipo Guided Activity
Duração 30 minutos
Respostas Incluídas Não
Idioma English
Palavras Chave 1:1 correspondence, cardinality, compose, counting, decompose, place value, ten frame
Simulações Number Play (HTML5)


Autores Ian Whitacre, Dom Carorora, Azar Kamaldar
Escola / Organização Florida State University
Submetido 11-09-2023
Atualizado 14-10-2023