Expression Exchange
Denne simuleringa har ikkje vorte omsette til dette språket. Du kan likevel starte den engelske versjonen nedanfor.
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Last ned
Innbygging
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
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Lærarguiden (pdf) inneheld tips som er laga av PhET-teamet. ( PDF ). |
Video Primer
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Teacher-Submitted Activities
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Bidragsytarar | Nivå | Type | Subject |
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| Adding and Subtracting Expressions |
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Amanda McGarry | Ungdomsskule | Guided | Matematikk |
| Algebraic Expressions |
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Amanda McGarry | Ungdomsskule | Guided | Matematikk |
| Generating Equivalent Expressions |
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Amanda McGarry | Ungdomsskule | Guided | Matematikk |
| Comparando expresiones equivalentes |
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Pam Branner, traducción de Diana López | Ungdomsskule vgs |
Guided | Matematikk |
| Equivalent Expression Exploration |
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Kimberly Struck | Ungdomsskule | Guided | Matematikk | |
| Like Terms and How to Combine Them |
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Julie Carres | Ungdomsskule | Guided | Matematikk | |
| Comparing Equivalent Expressions |
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Pam Brenner | vgs Ungdomsskule |
Guided | Matematikk | |
| CCSS Math Alignment with Sims |
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Amanda McGarry | Ungdomsskule vgs Barneskule |
Anna | Matematikk | |
| Variables and Coefficients | Lisa Nitzsche | Ungdomsskule Barneskule |
Guided Discuss |
Matematikk | ||
| Adding Negations | Julie Carres | Ungdomsskule | Guided | Matematikk |
| Windows 7+ | Mac OS 10.10+ | iPad and iPad Mini with iOS | Chromebook with Chrome OS |
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Microsoft Edge and Internet Explorer 11, latest version of Firefox, latest version of Chrome.
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Safari 9+, latest version of Firefox, latest version of Chrome.
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Latest version of Safari
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Latest version of Chrome
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| Designteam | Tredjepartsbibliotek | Takk til |
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