Addition strategies within 10 (or 20) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines.


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Título Addition strategies within 10 (or 20)
Descrición This lesson emphasizes explicit representations of addition expressions and solutions. The sim allows for students to solve using Ten Frames, free objects, or a linear representation that can function like a number line. These tools can support various direct modeling and counting strategies. This lesson focuses on the use of the Lab screen specifically because it does not provide immediate feedback regarding the total number of objects. (If feedback is desired, a class could use the Ten screen instead.)
Tema Matemáticas
Nivel 11
Tipo Guided Activity
Duración 30 minutos
Respostas incluidas Non
Linguaxe English
Palabras clave add, addition, compose, decompose
Simulacións Number Play (HTML5)


Autores Ian Whitacre, Dom Carorora, Azar Kamaldar
Centro Escolar / Institución Florida State University
Presentado 9/11/23
Actualizado 10/14/23