A-CED.1.4

Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations. For example, rearrange Ohm’s law V = IR to highlight resistance R. ★

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Formative Assessments
Formative Assessments
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Students are given three literal equations, each involving three variables and either multiplication or division, and are asked to solve each equation for a specific variable.
Literal Equations
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Students are given the slope formula and the slope-intercept equation and are asked to solve for specific variables.
Solving Formulas for a Variable
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Students are asked to solve the formula for the surface area of a cube for e, the length of an edge of the cube.
Surface Area of a Cube
Virtual/Hands-on Manipulatives
Virtual/Hands-on Manipulatives
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Assessment Questions
Assessment Questions
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FSA Sample Question
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Videos of Expert Instruction
Videos of Expert Instruction
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Literal equations are formulas for calculating the value of one unknown quantity from one or more known quantities. Variables in the formula are replaced by the actual or 'literal' values corresponding to a specific instance of the relationship.
Solving Literal Equations
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This video takes a look at rearranging a formula to highlight a quantity of interest.
Example of Solving for a Variable – Khan Academy
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Math Literature
Math Literature
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This problem uses a combination of Algebra and Geometry. In particular, students need to realize that the centers of three stacked pipe circles form an equilateral triangle.
How Much Shorter Are Staggered Pipe Stacks?
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