8th grade math

7th graders study fractions, decimals, square roots, proportions, pre-algebra, geometry and statistics. Each topic is outlined below.

Number system:

• This is the explanation of Common Core number work expectations for 8th grade from the site Illustrative Math:

  • Know that there are numbers that are not rational and approximate them with rationale numbers. 

(If you would like to see a more detailed explanation of each bullet click, here and navigate to 8th grade Number System.)

 

• Here are some examples of common core number work in 8th grade:      

  •  repeating decimal to fraction problem

  • using fractions and decimals to solve problems

  • estimating square roots

  • irrational numbers on a number line

 

• We also review the following topics:

  • ​adding, subtracting, multiplying and dividing rational numbers (fractions, decimal numbers, and mixed numbers including negative numbers).

 

Ratios and Proportional Relationships:

• In 8th grade math we review 7th grade work with ratio and proportions.

 

• Here is an  example of common core ratio and proportion work in 7th grade:      

  • percent increase

  • miles per hour

  • unit rates

 

Expressions and Equations:

• This is the explanation of Common Core equation work expectations for 7th grade from the site Illustrative Math:

  • Use property of operations to generate equivalent expressions.

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

(If you would like to see a more detailed explanation of each bullet click, here and navigate to 7th grade Expressions and Equations.)

 

• Here are some examples of common core equation work in 7th grade:      

  •  writing expressions 

  • solving problems

  • writing equations

 

Statistics and Probability:

• This is the explanation of Common Core statistics and probability work expectations for 7th grade from the site Illustrative Math:

  • 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.

(If you would like to see a more detailed explanation of each bullet click, here and navigate to 7th grade Statistics and Probability.)

 

• Here is an example of common core statistics and probability work in 7th grade:      

  •  analyzing percent

  • measures of center and measures of variability

  • probability

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Geometry:

• This is the explanation of Common Core geometry work expectations for 7th grade from the site Illustrative Math:

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

  • Solve real-live and mathematical problems involving angle measures, area, surface area, and volume.

(If you would like to see more detailed explanation of each bullet click, here and navigate to 7th grade Geometry.)

 

• Here are some examples of common core geometry work in 7th grade:      

  •  Finding area using a scale map

  • cross sections

  • area of a circle

  • volume