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Expression Exchange

Denne simuleringa har ikkje vorte omsette til dette språket. Du kan likevel starte den engelske versjonen nedanfor.

Expression Exchange Skjermbilete Last ned Innbygging
  • Equivalent Expressions
  • Evaluating Expressions
  • Simplifying Expressions

Innhald

  • Equivalent Expressions
  • Evaluating Expressions
  • Simplifying Expressions

Description

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!

Døme på læringsmål

  • 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..
Version 1.1.4

Teacher Tips

Lærarguiden (pdf) inneheld tips som er laga av PhET-teamet. ( PDF ).

Video Primer

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Teacher-Submitted Activities

Tittel Gold Star Contribution Contribution by PhET Bidragsytarar Nivå Type Subject
Adding and Subtracting Expressions A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Dette bidraget blei designa av PhET Amanda McGarry Ungdomsskule Guided Matematikk
Algebraic Expressions A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Dette bidraget blei designa av PhET Amanda McGarry Ungdomsskule Guided Matematikk
Generating Equivalent Expressions A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Dette bidraget blei designa av PhET Amanda McGarry Ungdomsskule Guided Matematikk
Comparando expresiones equivalentes A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Dette bidraget blei designa av PhET Pam Branner, traducción de Diana López vgs
Ungdomsskule		 Guided Matematikk
Equivalent Expression Exploration A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Kimberly Struck Ungdomsskule Guided Matematikk
Like Terms and How to Combine Them A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Julie Carres Ungdomsskule Guided Matematikk
Comparing Equivalent Expressions A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Pam Brenner Ungdomsskule
vgs		 Guided Matematikk
CCSS Math Alignment with Sims Dette bidraget blei designa av PhET Amanda McGarry vgs
Barneskule
Ungdomsskule		 Anna Matematikk
Variables and Coefficients Lisa Nitzsche Barneskule
Ungdomsskule		 Guided
Discuss		 Matematikk
Adding Negations Julie Carres Ungdomsskule Guided Matematikk

Share an Activity!

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 Firefox, latest version of Chrome.

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

Designteam Tredjepartsbibliotek Takk til
  • Amanda McGarry (lead designer)
  • John Blanco (developer)
  • David Webb
  • Kathy Perkins
  • Ariel Paul
  • 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
  • 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
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