Addition strategies within 10 (or 20) En gold-star betyder høj kvalitet, undersøgelsesbacerede aktiviteter som følger PhET's retningslinier.


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Tittel Addition strategies within 10 (or 20)
Beskrivelse 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.)
Emne Matematik
Niveau K-5
Type Guidet aktivitet
Varighed 30 minutter
Svar inkluderet Nej
Sprog Engelsk
Nøgleord add, addition, compose, decompose
Simuleringer Talleg (HTML5)


Forfattere Ian Whitacre, Dom Carorora, Azar Kamaldar
Skole / organisation Florida State University
Dato for tilmelding 11-09-23
Dato for opdatering 14-10-23