True or False? 1st grade A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines.


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Pealkiri True or False? 1st grade
Kirjeldus The purpose of this activity is to support students’ development of algebraic thinking by focusing on students’ conceptualization of the equal sign. Students often have an operational view of the equal sign in which the equal sign indicates the answer to an expression. In this activity students are presented with equations in which the sum or difference appears on the right side of the equation as well as the left side. Additionally, the equal sign is used to falsely relate two quantities without an operation. Some students may state that the equal sign cannot appear on the left side of an equation or that an operational sign (addition or subtraction) is needed. These less common equation structures are intended to elicit student thinking and support students’ development of a relational view of the equal sign: viewing the equal sign as indicating equal relationships regardless of position or presence of an operational symbol.
Õppeaine Matemaatika
Tase K-5
Tüüp Guided Activity
Kestus 30 minutit
Koos vastustega Ei
Keel inglise
Võtmesõnad bar graph, cardinality, compare, equals sign, grouping
Simulatsioonid Number Compare (HTML5)


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