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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سه‌ردێر Addition strategies within 10 (or 20)
Description 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.)
Subject بیرکاری
ئاست K-5
Type Guided Activity
Duration 30 خوله‌ک
Answers Included نا
زوان English
Keywords add, addition, compose, decompose
شێوه‌کاریه‌کان Number Play (HTML5)


نووسه‌ران Ian Whitacre, Dom Carorora, Azar Kamaldar
قوتابخانه‌/ ڕێکخراو Florida State University
ناردراو 9/11/23
به‌ڕۆژ بوه‌ 10/14/23