# Expression Exchange

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Rulează
Folosiţi acest cod sursă pentru afişarea "Rulează" Equivalent Expressions Evaluating Expressions Simplifying Expressions PhET is supported by and educators like you.

### Subiecte

• Equivalent Expressions
• Evaluating Expressions
• Simplifying Expressions

### Descriere

Build coin expressions, then exchange them for variable expressions. Simplify and evaluate expressions until you are ready to test your understanding of equivalent expressions in the game!

### Studii de caz

• Simplify expressions by combining like-terms
• Contextualize coefficients and like/unlike-terms
• Interpret an expression in both abstract and concrete representations
• Build an expression that is equivalent to a target

### Standards Alignment

#### Common Core - Math

3.OA.A.1
Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each. For example, describe a context in which a total number of objects can be expressed as 5 × 7.
5.OA.A.1
Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.
6.EE.A.2
Write, read, and evaluate expressions in which letters stand for numbers.
6.EE.A.2b
Identify parts of an expression using mathematical terms (sum, term, product, factor, quotient, coefficient); view one or more parts of an expression as a single entity. For example, describe the expression 2 (8 + 7) as a product of two factors; view (8 + 7) as both a single entity and a sum of two terms.
6.EE.A.3
Apply the properties of operations to generate equivalent expressions. For example, apply the distributive property to the expression 3 (2 + x) to produce the equivalent expression 6 + 3x; apply the distributive property to the expression 24x + 18y to produce the equivalent expression 6 (4x + 3y); apply properties of operations to y + y + y to produce the equivalent expression 3y.
6.EE.A.4
Identify when two expressions are equivalent (i.e., when the two expressions name the same number regardless of which value is substituted into them). For example, the expressions y + y + y and 3y are equivalent because they name the same number regardless of which number y stands for..
Versiune 1.1.14

### Sfaturi pentru profesori

 Ghidul profesorului conține un sumar al elementelor de control ale simulării, modelul ideal, perspective asupra gândirii elevilor ( PDF ).

### Video Primer

Autentificare pentru a urmări video primer

### Activități ale profesorilor

Games Remote Lesson ideas Trish Loeblein MS
HS
UG-Intro
K-5
Remote
HW
Mathematics
Chemistry
Physics
Adding and Subtracting Expressions Amanda McGarry MS Guided Mathematics
Algebraic Expressions Amanda McGarry MS Guided Mathematics
Generating Equivalent Expressions Amanda McGarry MS Guided Mathematics
Comparando expresiones equivalentes Pam Branner, traducción de Diana López HS
MS
Guided Mathematics
Equivalent Expression Exploration Kimberly Struck MS Guided Mathematics
Like Terms and How to Combine Them Julie Carres MS Guided Mathematics
Comparing Equivalent Expressions Pam Brenner MS
HS
Guided Mathematics
Middle School Math Sim Alignment Amanda McGarry MS Other Mathematics
SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017) Diana López HS
MS
Other Biology
Physics
Chemistry
Mathematics
PREPARATORIA: Alineación de PhET con programas de la DGB México (2017) Diana López HS
UG-Intro
Other Physics
Mathematics
Chemistry
Adierazpen baliokideak alderatzea José Manuel López Irastorza HS Guided Mathematics
Variables and Coefficients Lisa Nitzsche K-5
MS
Discuss
Guided
Mathematics
Adding Negations Julie Carres MS Guided Mathematics
Modelo de Áreas, Cambio de Expresiones Andrés Gualberto Palomo Cuevas HS Remote
HW
Mathematics
Continuación de Cambio de Expresiones Andrés Gualberto Palomo Cuevas HS HW
Other
Mathematics
Cambio de Expresiones Andrés Gualberto Palomo Cuevas HS Remote
HW
Mathematics
Albanian All shqip Shkëmbimi i shprehjes
Arabic All العربية استبدال العبارات الجبرية
Bosnian All Bosanski Novčići (Algebarski izrazi)
Brazilian Portuguese All português (Brasil) Expressões
Chinese - Simplified All 中文 (中国) 表达式变换
Chinese - Traditional All 中文 (台灣) Expression Exchange_代數的表示法
Croatian All hrvatski Algebarski izrazi
Danish All Dansk Ændring af udtryk
Dutch All Nederlands Uitdrukkingen omwisselen
Finnish All suomi Lausekkeen vaihto
French All français Échange d'expression
German All Deutsch Terme Komponieren
Greek All Ελληνικά Αριθμητικές παραστάσεις
Hebrew All עברית שיוויון ביטויים מתמטיים
Italian All italiano Espressioni
Japanese All 日本語 代数式を作ろう
Kazakh All Kazakh Рационал өрнектер
Korean All 한국어 식 교환
Latvian All Latviešu Izteiksmes
Maori All Maori Whakawhitiwhiti Whārite
Marathi All मराठी पदावली शोध
Mongolian All Монгол (Монгол) Шуурхай Өөрчлөх
Norwegian Bokmal All Norsk bokmål Veksle utttrykk
Persian All فارسی جابجایی عبارت ریاضی
Polish All polski Wyrażenia algebraiczne
Russian All русский Рациональные выражения
Serbian All Српски Новчићи (Алгебарски изрази)
Spanish All español Cambio de Expresiones
Spanish (Mexico) All español (México) Cambio de Expresiones
Spanish (Peru) All español (Perú) Cambio de Expresión
Swedish All svenska Arbeta med Uttryck
Ukrainian All українська Перетвори вираз
Vietnamese All Tiếng Việt Biểu thức

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Echipa de proiectare Alţi colaboratori Mulţumiri
• John Blanco (developer)
• David Webb
• Kathy Perkins
• Ariel Paul
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