# Area Model Algebra

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### Description

Build rectangles of various sizes and relate multiplication to area. Discover new strategies for multiplying algebraic expressions. Use the game screen to test your multiplication and factoring skills!

### Contoh Tujuan Pengajaran

• Develop and justify a method to use the area model to determine the product of a monomial and a binomial or the product of two binomials.
• Factor an expression, including expressions containing a variable.
• Recognize that area represents the product of two numbers and is additive.
• Represent a multiplication problem as the area of a rectangle, proportionally or using generic area.
• Develop and justify a strategy to determine the product of two multi-digit numbers by representing the product as an area or the sum of areas.

### Standards Alignment

#### Common Core - Math

3.MD.C.7
Relate area to the operations of multiplication and addition.
3.MD.C.7c
Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths a and b + c is the sum of a × b and a × c. Use area models to represent the distributive property in mathematical reasoning.
3.MD.C.7d
Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of the non-overlapping parts, applying this technique to solve real world problems.
4.NBT.B.5
Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
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..
6.NS.B.4
Find the greatest common factor of two whole numbers less than or equal to 100 and the least common multiple of two whole numbers less than or equal to 12. Use the distributive property to express a sum of two whole numbers 1-100 with a common factor as a multiple of a sum of two whole numbers with no common factor. For example, express 36 + 8 as 4 (9 + 2)..
7.EE.A.1
Apply properties of operations as strategies to add, subtract, factor, and expand linear expressions with rational coefficients.
7.NS.A.2c
Apply properties of operations as strategies to multiply and divide rational numbers.
8.EE.C.7b
Solve linear equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms.
Version 1.2.1

### Teacher Tips

 Panduan Bagi Guru (pdf) memuat petunjuk / tip yang dibuat oleh Tim PhET. ( PDF ).

### Video Primer

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### Teacher-Submitted Activities

Games Remote Lesson ideas Trish Loeblein UG-Intro
MS
HS
K-5
Remote
HW
Physics
Chemistry
Mathematics
Expanding and Factoring Algebraic Expressions Amanda McGarry MS Guided Mathematics
Algebraic Expressions Amanda McGarry MS Guided Mathematics
Exploring Factoring as Undoing the Distributive Property Sarah Hampton HS
MS
Guided Mathematics
Middle School Math Sim Alignment Amanda McGarry MS Other Mathematics
Using the area model with expressions Jennifer Knudsen, Teresa Lara-Meloy, Amanda McGarry MS Discuss Mathematics
SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017) Diana López MS
HS
Other Mathematics
Chemistry
Physics
Biology
PREPARATORIA: Alineación de PhET con programas de la DGB México (2017) Diana López HS
UG-Intro
Other Physics
Mathematics
Chemistry
Would You Rather ... Karen Gann HS Guided Mathematics
Area Model Algebra - Multiplying Polynomials Carolyn Felknor MS Guided Mathematics
ARTICULANDO ÁLGEBRA E GEOMETRIA: O CASO DAS EQUAÇÕES ALGÉBRICAS NO ESTUDO DE ÁREAS Verusca Batista Alves; Ana Carolina Costa Pereira MS Lab
HW
Mathematics
Distributive Property Review Tim Kissinger and Larry Peters MS Discuss
Guided
Mathematics
Modelo de Áreas, Cambio de Expresiones Andrés Gualberto Palomo Cuevas HS HW
Remote
Mathematics
Bahasa Download or Run Tips
Albanian All shqip Modeli Syprinës: Algjebër
Arabic All العربية جبر نموذج المساحة
Basque All Euskara Azalera-modeloan algebra
Bosnian All Bosanski Matematički model površina - Algebra
Brazilian Portuguese All português (Brasil) Modelo de Área: Álgebra
Chinese - Simplified All 中文 (中国) 面积模型代数
Chinese - Traditional All 中文 (台灣) Area Model Algebra_面積模型與代數
Danish All Dansk Arealmodel, algebra
Dutch All Nederlands Algebra van oppervlakte
Finnish All suomi Pinta-ala ja algebra
French All français Modélisation par les aires - Algèbre
German All Deutsch Flächenmodell Algebra
Greek All Ελληνικά Υπολογισμός εμβαδού
Gujarati All Gujarati ક્ષેત્રફળ મોડેલ - બીજગણિત
Hindi All हिंदी  बीजगणित -नमूने का क्षेत्रफल
Hungarian All magyar Területmodell: algebra
Italian All italiano Rappresentazione grafica della moltiplicazione in algebra
Japanese All 日本語 面積と式の展開
Kazakh All Kazakh Ауданды есептеу
Korean All 한국어 면적 모형: 대수
Latvian All Latviešu Laukuma modeļa algebra
Marathi All मराठी क्षेत्रफळाचे बीजगणित
Mongolian All Монгол (Монгол) Талбайн загварын Алгебр
Persian All فارسی جبر مدل مساحت
Polish All polski Model pola - wyrażenia algebraiczne
Portuguese All português Modelo de Área: Álgebra
Russian All русский Вычисление площади
Serbian All Српски Математика преко површина - Алгебра
Sinhalese All Sinhalese වර්ගඵල ආකෘති වීජ ගණිතය
Spanish All español Modelo de Áreas: Álgebra
Spanish (Mexico) All español (México) Modelo de Áreas: Álgebra
Spanish (Peru) All español (Perú) Modelo de Área con Álgebra
Swedish All svenska Areamodellen och algebra
Tamil All Tamil மாதிரி உருவின் எண்(அட்சர) கணிதம்
Turkish All Türkçe Alan Modeli İle Cebir
Ukrainian All українська Площинна модель. Алгебра
Vietnamese All Tiếng Việt Đại số với mô hình diện tích

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Tim Perancang Librari Pihak Ketiga Terimakasih Kepada
• Amy Hanson (lead designer)
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• Karina Hensberry
• Susan Miller
• Ariel Paul
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• Diana López Tavares (artwork)
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