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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Názov Addition strategies within 10 (or 20)
Popis 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.)
Predmet Matematika
Úroveň K-5
Typ Sprievodné aktivity
Trvanie 30 min
Vrátane odpovedí Nie
Jazyk Angličtina
Kľúčové slová add, addition, compose, decompose
Simulácia Hra s číslami (HTML5)


Autor(i) Ian Whitacre, Dom Carorora, Azar Kamaldar
Škola / Organizácia Florida State University
Dátum odoslania 11.9.2023
Dátum aktualizácie 14.10.2023