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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Pealkiri Addition strategies within 10 (or 20)
Kirjeldus 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.)
Õppeaine Matemaatika
Tase K-5
Tüüp Guided Activity
Kestus 30 minutit
Koos vastustega Ei
Keel inglise
Võtmesõnad add, addition, compose, decompose
Simulatsioonid Number Play (HTML5)


Autorid Ian Whitacre, Dom Carorora, Azar Kamaldar
Kool / Organisatsioon Florida State University
Sisestatud 11.09.23
Uuendatud 14.10.23