**National STEM Education Standards**. The formulas contain places for inputting numbers. Evaluating a formula requires inputting the correct data and performing the operations. Read More...

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STEM.M. MATHEMATICS: National Council of Teachers of Mathematics (NCTM)

NCTM.2. Algebra

2.3. Use mathematical models to represent and understand quantitative relationships.

2.3.1. Model and solve contextualized problems using various representations, such as graphs, tables, and equations.

NCTM.4. Measurement

4.2. Apply appropriate techniques, tools, and formulas to determine measurements.

4.2.2. Select and apply techniques and tools to accurately find length, area, volume, and angle measures to appropriate levels of precision.

4.2.3. Develop and use formulas to determine the circumference of circles and the area of triangles, parallelograms, trapezoids, and circles and develop strategies to find the area of more-complex shapes.

NCTM.11. Grade 6 Curriculum Focal Points

11.3. Algebra: Writing, interpreting, and using mathematical expressions and equations

11.3.1. Students write mathematical expressions and equations that correspond to given situations, they evaluate expressions, and they use expressions and formulas to solve problems. They understand that variables represent numbers whose exact values are not yet specified, and they use variables appropriately. Students understand that expressions in different forms can be equivalent, and they can rewrite an expression to represent a quantity in a different way (e.g., to make it more compact or to feature different information). Students know that the solutions of an equation are the values of the variables that make the equation true. They solve simple one-step equations by using number sense, properties of operations, and the idea of maintaining equality on both sides of an equation. They construct and analyze tables (e.g., to show quantities that are in equivalent ratios), and they use equations to describe simple relationships (such as 3x = y) shown in a table.

NCTM.12. Connections to the Grade 6 Focal Points

12.3. Measurement and Geometry: Problems that involve areas and volumes, calling on students to find areas or volumes from lengths or to find lengths from volumes or areas and lengths, are especially appropriate. These problems extend the students'' work in grade 5 on area and volume and provide a context for applying new work with equations.