GRADE 8 MATH INSTRUCTIONAL FOCUS
According to the Missouri Learning Standards (MLS), eighth grade will focus on the following three critical areas:
- Formulating and reasoning about expressions and equations including modeling as association in bivariate data with a linear equation, solving linear equations and systems of linear equations.
- Understanding the concept of a function and using functions to describe relationships.
- Analyzing geometrical figures using distance, angle, similarity and congruence, and understanding the Pythagorean Theorem.
Instructional Overview
Domains
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The Number system (NS)
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Expressions and Equations (EE)
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Functions (F)
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Geometry (G)
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Statistics & Probability (SP)
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Clusters
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Know that there are numbers that are not rational, and approximate them by rational numbers
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Work with radicals and integer exponents
Understand the connections between proportional relationships, lines, and linear equations Analyze and solve linear equations and pairs of simultaneous linear equations |
Define, evaluate, and compare functions
Use functions to model relationships between quantities |
Understand congruence and similarity using physical models, transparencies, or geometry software
Understand and apply the Pythagorean Theorem Solve real-world and mathematical problems involving volume of cylinders, cones and spheres |
Investigate patterns of association in bivariate data
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Mathematical Practices
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1. Make sense of problems and persevere in solving them.
2. Reason abstractly and quantitatively. 3. Construct viable arguments and critique the reasoning of others. |
4. Model with mathematics.
5. Use appropriate tools strategically. 6. Attend to precision. |
7. Look for and make use of structure.
8. Look for and express regularity in repeated reasoning. |
The following resources have been developed and/or gathered to support eighth grade teachers as they implement the MLS. Just click on the links below to access these documents.
GCR2 Approved 8th Grade Math Curriculum
GCR2 Approved 8th Grade Math Curriculum
EIGHTH GRADE END-OF-YEAR EXPECTED MEASUREABLE SKILLS ATTAINMENT
Math Practice Assessments:
- 8th Grade Missouri Learning Standards Functions - Students need to define, evaluate and compare functions and to use functions to evaluate relationships between quantities.
- 8th Grade Missouri Learning Standards Number System - Know that there are numbers that are not rational and approximate them by rational numbers.
- 8th Grade Missouri Learning Standards Expressions and Equations - Students need to work with radicals and integer exponents, understand the relations between proportional relationships, lines and linear equations and analyze and solve linear equations.
- 8th Grade Missouri Learning Standards Statistics and Probability - Require eighth grade students to use sampling to draw inferences, to draw informal comparative inferences about two populations and to investigate chance processes and develop, use, and evaluate probability models.
- 8th Grade Missouri Learning Standards Geometry - Eighth grade students are expected to be able to understand congruence and similarity, understand and apply the Pythagorean Theorem, and solve real-world and mathematical problems involving volumes of spheres, cones and cylinders.
Grade 8 Resources
EE.8.NS.1: Subtract Fractions with like denominators (halves, thirds, etc.) with minuends (1/4 – 1/8) less than or equal to one.
- Teacher’s Notebook: Adding and Subtracting Fractions Games (FREE)
- TpT: Adding and Subtracting Fractions with Like Denominators ($2.00)
- Learn Zillion: Add and Subtract Fractions with Like Denominators
- You Tube: Subtracting Fractions with Like Denominators
EE.8.NS.2a: Express a fraction with a denominator of 100 as a decimal.
EE.8.NS.2b: Compare quantities represented as decimals in real-world examples to hundredths.
- Decimals in the Real World
- Great Schools: Real Life Problems
- TpT: Pirate Pete Compares Decimals 10ths and 100ths (Free)
- Learn Zillion: Identify equivalent decimals by comparing tenths and hundredths
EE.8.EE.1: Identify the meaning of an exponent (2&3)
- Exponent Anchor Chart
- Exponent Worksheet Generator
- Math is Fun: Power of 2
EE.8.EE.2: Identify a geometry sequence of whole numbers with a whole number common ratio.
- Cool Math: Geometric Sequences
- TpT: Arithmetic and Geometric Sequences and Series Football Review Game (Free)
- Learn Zillion: Finding the Rule for a Function Table
- Learn Zillion: Find the 9th shape for a geometric pattern using a table
EE.8.EE.3-4: Compose and decompose whole numbers to 999.
EE.8.EE.5-6: Graph a simple ratio by connecting the origin to a point representing the ratio in the form of y/x. (EX. PLOT POINTS 2,1)
EE.8.EE.7: Solve simple algebraic equations with one variable using addition and subtraction.