Expression Exchange_代數的表示法

Expression Exchange_代數的表示法 螢幕截圖  下載  嵌入
  • Equivalent Expressions
  • Evaluating Expressions
  • Simplifying Expressions

標題

  • Equivalent Expressions
  • Evaluating Expressions
  • Simplifying Expressions

描述

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!

學習目標

  • 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

標準對齊

共用核心 - 數學

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..
版本 1.1.12

教學提示

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老師提供的活動

Comparando expresiones equivalentes A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. 此貢獻是由 PhET 所作之設計 Pam Branner, traducción de Diana López 國中
高中
指引 數學
Adding and Subtracting Expressions A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. 此貢獻是由 PhET 所作之設計 Amanda McGarry 國中 指引 數學
Algebraic Expressions A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. 此貢獻是由 PhET 所作之設計 Amanda McGarry 國中 指引 數學
Generating Equivalent Expressions A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. 此貢獻是由 PhET 所作之設計 Amanda McGarry 國中 指引 數學
Equivalent Expression Exploration A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Kimberly Struck 國中 指引 數學
Like Terms and How to Combine Them A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Julie Carres 國中 指引 數學
Comparing Equivalent Expressions A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Pam Brenner 高中
國中
指引 數學
Middle School Math Sim Alignment 此貢獻是由 PhET 所作之設計 Amanda McGarry 國中 其它 數學
Adierazpen baliokideak alderatzea José Manuel López Irastorza 高中 指引 數學
Variables and Coefficients Lisa Nitzsche K-5
國中
討論
指引
數學
Adding Negations Julie Carres 國中 指引 數學

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The new HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.

iPad:
iOS 11+ Safari
iPad compatible sims

Android:
Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.

Chromebook:
Latest version of Google Chrome
The HTML5 and Flash PhET sims are supported on all Chromebooks.
Chromebook compatible sims

Windows Systems:
Microsoft Edge and Internet Explorer 11, latest version of Firefox, latest version of Google Chrome.

Macintosh Systems:
macOS 10.9.5+, Safari 9+, latest version of Chrome.

Linux Systems:
Not officially supported. Please contact phethelp@colorado.edu with troubleshooting issues.

設計團隊 第三方諮詢 感謝
  • Amanda McGarry (lead designer)
  • John Blanco (developer)
  • David Webb
  • Kathy Perkins
  • Ariel Paul
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