# کاوشگر برابری: مقدمات

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برای اجرا کلیک کنید
از این کد برای اجرای تصویری که پیغام میدهد "برای اجرا اینجا را کلیک کنید" استفاده کنید. Equations Inequalities Proportional Reasoning PhET حمایت می شود توسط و مدرسانی چون شما.

### محتوا

• Equations
• Inequalities
• Proportional Reasoning

### Description

Explore what it means for a mathematical statement to be balanced or unbalanced by interacting with objects on a balance. Find all the ways to balance cats and dogs or apples and oranges.

### نمونه ای از هدف های آموزشی

• Use a balance model to solve an equation for an unknown, and justify your strategies for solving
• Use proportional reasoning to determine the value of a single object

### Standards Alignment

#### Common Core - Math

6.EE.B.5
Understand solving an equation or inequality as a process of answering a question: which values from a specified set, if any, make the equation or inequality true? Use substitution to determine whether a given number in a specified set makes an equation or inequality true.
6.EE.B.6
Use variables to represent numbers and write expressions when solving a real-world or mathematical problem; understand that a variable can represent an unknown number, or, depending on the purpose at hand, any number in a specified set.
7.EE.B.3
Solve multi-step real-life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies. For example: If a woman making \$25 an hour gets a 10% raise, she will make an additional 1/10 of her salary an hour, or \$2.50, for a new salary of \$27.50. If you want to place a towel bar 9 3/4 inches long in the center of a door that is 27 1/2 inches wide, you will need to place the bar about 9 inches from each edge; this estimate can be used as a check on the exact computation.
7.EE.B.4
Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.
8.EE.C.7
Solve linear equations in one variable.
8.EE.C.7a
Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions. Show which of these possibilities is the case by successively transforming the given equation into simpler forms, until an equivalent equation of the form x = a, a = a, or a = b results (where a and b are different numbers).
8.EE.C.8
Analyze and solve pairs of simultaneous linear equations.
HSA-CED.A.1
Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions.
HSA-CED.A.3
Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context. For example, represent inequalities describing nutritional and cost constraints on combinations of different foods.
HSA-REI.A.1
Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method.
HSA-REI.B.3
Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters.
Version 1.0.13

### Teacher Tips

 راهنمای معلم مجموعه توصیه های تولید شده توسط گروه PHET به صورت pdf. ( PDF ).

### Teacher-Submitted Activities

Middle School Math Sim Alignment Amanda McGarry راهنمایی سایر ریاضیات
SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017) Diana López راهنمایی
دبیرستان
سایر زیست شناسی
فیزیک
شیمی
ریاضیات
PRIMARIA: Alineación con programas de la SEP México (2011 y 2017) Diana López دبستان
راهنمایی
Guided
آزمایشگاه
Discuss
کار در خانه
نمایش
شیمی
نجوم
فیزیک
ریاضیات
Introducción a la igualdad Diana López دبیرستان
راهنمایی
آزمایشگاه
Guided
کار در خانه
ریاضیات
Sarrera berdinketara José Manuel López Irastorza دبیرستان
راهنمایی
Guided ریاضیات
Equality Explorer: Homework + Class Venn Diagram Becca Kreidler راهنمایی
دبیرستان
کار در خانه ریاضیات
Explorador da igualdade: básico Ana Maria Silva Guedes e Francisco Regis Vieira Alves راهنمایی آزمایشگاه ریاضیات
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گروه طراحی Third-party Libraries با تشکر از
• Chris Malley (developer)
• Diana López Tavares
• Ariel Paul
• Kathy Perkins
• Argenta Price
• David Webb
• Mariah Hermsmeyer (graphic arts)
• Cheryl McCutchan (graphic arts)
• almond-0.2.9.js
• base64-js-1.2.0.js
• easing-equations-r12
• FileSaver-b8054a2.js
• font-awesome-4.5.0
• game-up-camera-1.0.0.js
• he-1.1.1.js
• himalaya-0.2.7.js
• jama-1.0.2
• jquery-2.1.0.js
• lodash-4.17.4.js
• pegjs-0.7.0.js
• seedrandom-2.4.2.js
• text-2.0.12.js
• TextEncoderLite-3c9f6f0.js
• Tween-r12.js