Mathematics / 7th Grade Math

Hello, welcome to DeSana Mathematics!

The Mathematics Department at DeSana Middle School follows the Common Core Georgia Performance Standards (CCGPS). In 7^th grade, instructional time focuses on four critical areas: (1) developing understanding of and applying proportional relationships; (2) developing understanding of operations with rational numbers and working with expressions and linear equations; (3) solving problems involving scale drawings and informal geometric constructions, and working with two‐ and three‐dimensional shapes to solve problems involving area, surface area, and volume; and (4) drawing inferences about populations based on samples. Listed below are the detailed pieces of all levels of Mathematics in 7^th grade. If you have any questions, please do not hesitate to contact any teacher on our Math team.

On-Level

Advanced

Ratios and Proportional Relationships

• Analyze proportional relationships and use them to solve real‐world and mathematical problems.

The Number System

• Apply and extend previous understandings of operations with fractions to add, subtract, multiply, and divide rational numbers.

Expressions and Equations

• Use properties of operations to generate equivalent expressions.

• Solve real‐life and mathematical problems using numerical and algebraic expressions and equations.

Geometry

• Draw, construct and describe geometrical figures and describe the relationships between them.

• Solve real‐life and mathematical problems involving angle measure, area, surface area, and volume.

Statistics and Probability

• Use random sampling to draw inferences about a population.

• Draw informal comparative inferences about two populations.

• Investigate chance processes and develop, use, and evaluate probability models.

ALL CCGPS 7^th Grade Standards plus:

Multi-step problems and word problems with increased rigor
Word Problems with inequalities
Equations and inequalities with variables on both sides
Solve for specific variables (2-step max) given an equation written in 2+ variables (i.e. a + 2b = c, solve for b)
Multi-step percent problems
Increased rigor with larger sample spaces and compound events
Dependent and independent events