Standard Course of Study :: Mathematics — Grade 8

LEARN NC

K–12 teaching and learning · from the UNC School of Education

Goal 5

Algebra - The learner will understand and use linear relations and functions.

Objective 5.03

Solve problems using linear equations and inequalities; justify symbolically and graphically.

Resources aligned to this objective

Dear Tootsie Roll company
The students will measure the surface area and wrapper area of five pieces of candy. Using appropriate formulas and measuring techniques, they will complete information needed for a spreadsheet and database. Students wrap up the lesson by writing a letter to the company with the most wasted paper to explain how the waste affects them as consumers and a suggestion for correcting the problem.
Format: lesson plan (grade 8 English Language Arts, Computer Technology Skills, and Mathematics)
By Tonya Thompson.
Density of common liquids
Each lab team will determine the density of water and one of the sample liquids. The class will then compile their information.
Format: lesson plan (grade 8 Mathematics and Science)
By Sansia Coble.
Graphing Inequalities
This is an activity I use when I need to get my students into groups of two and review inequalties and perpendicular slopes.
Format: lesson plan (grade 7–12 Mathematics)
By Shirlyn Sullins.
Homerun Hoopla
This lesson is designed for students to gather and analyze data about baseball figures. The student will use the Internet or other resources to collect statistical data on the top five home run hitters for the current season as well as their career home run totals. The students will graph the data and determine if it is linear or non-linear.
Format: lesson plan (grade 8–12 Mathematics)
By Anne Walters.
Measuring pots
Students will use an activity sheet or modern pottery rim sherds to compute circumference from a section of a circle and construct analogies based on their own experience about possible functions of ancient or historic ceramics.
Format: lesson plan (grade 8 Social Studies and Mathematics)
Please Excuse My Dear Aunt Sally
Students will learn and practice the correct order of operations. The lesson will begin with a motivational group-art activity. Students will then take notes and do a "pass the paper" activity for practice. This will be followed by students creating their own problems.
Format: lesson plan (grade 6–8 Mathematics)
By Shirley Powell.
Submarines: Using mass, volume and density to create a working submarine
The students will design a submarine that will float, subsurface, sink, and return once again to the water's surface by external manipulation of the submarine outside of an aquarium. In order to accomplish this, the students will use not only the concepts of mass, volume, and density but will also integrate buoyancy and ballast in their submarine design.
Format: lesson plan (grade 8 Information Skills, Mathematics, and Science)
By Amy Koonce.

Lesson plans on the web

Algebra in balance
In this lesson, one of a multi-part unit from Illuminations, students use an interactive pan balance tool to explore algebraic expressions. They determine if algebraic expressions are equal and balance pans to solve a system of equations. (Learn more)
Format: lesson plan (grade 6–8 Mathematics)
Provider: National Council of Teachers of Mathematics
Bagel algebra
In this Illuminations lesson, a real life example taken from a bagel shop is used to get students to think about solving a problem symbolically. (Learn more)
Format: lesson plan (grade 6–8 Mathematics)
Provider: National Council of Teachers of Mathematics
Barbie bungee
In this Illuminations lesson, students model a bungee jump using a Barbie doll and rubber bands. The distance to which the doll will fall is directly proportional to the number of rubber bands, so this context is used to examine linear functions. (Learn more)
Format: lesson plan (grade 6–12 Mathematics)
Provider: National Council of Teachers of Mathematics
Beyond handshakes
In this lesson, one of a multi-part unit from Illuminations, students explore triangular numbers. This exploration enhances students' ability to generalize a pattern with variables. (Learn more)
Format: lesson plan (grade 6–8 Mathematics)
Provider: National Council of Teachers of Mathematics
Burning questions
In this lesson, one of a multi-part unit from Illuminations, students use information from a quiz, along with what they learned in the previous four lessons, to write a summary and finalize a property sketch demonstrating their understanding of wildfires. (Learn more)
Format: lesson plan (grade 6–8 Mathematics)
Provider: National Council of Teachers of Mathematics
Constant dimensions
In this Illuminations lesson, students measure the length and width of a rectangle using both standard and non-standard units of measure. In addition to providing measurement practice, this lesson allows students to discover that the ratio of length to width of a rectangle is constant. (Learn more)
Format: lesson plan (grade 6–8 Mathematics)
Provider: National Council of Teachers of Mathematics
Finding our top speed
This Illuminations lesson sets the stage for a discussion of travel in the solar system. By considering a real-world, hands-on activity, students develop their understanding of time and distance. (Learn more)
Format: lesson plan (grade 8 Mathematics)
Provider: National Council of Teachers of Mathematics
Golden ratio
In this Illuminations lesson, students explore the Fibonacci sequence. They examine how the ratio of two consecutive Fibonacci numbers creates the Golden Ratio and identify real-life examples of the Golden Ratio. (Learn more)
Format: lesson plan (grade 6–8 Mathematics)
Provider: National Council of Teachers of Mathematics
Graphical representations for the number of hits
In this lesson, one of a multi-part unit from Illuminations, students continue their exploration of the Paper Pool game by graphically analyzing data collected during several games played. (Learn more)
Format: lesson plan (grade 6–8 Mathematics)
Provider: National Council of Teachers of Mathematics
How many hits?
In this lesson, one of a multi-part unit from Illuminations, students continue their investigation of the Paper Pool game by exploring more tables and organizing the results. (Learn more)
Format: lesson plan (grade 6–8 Mathematics)
Provider: National Council of Teachers of Mathematics
Investigating fire environments
In this lesson, one of a multi-part unit from Illuminations, students consider the meaning of the term variable, both in a mathematical and an everyday sense, by considering a text-based “equation.” (Learn more)
Format: lesson plan (grade 6–8 Mathematics)
Provider: National Council of Teachers of Mathematics
Learn the game
In this lesson, one of a multi-part unit from Illuminations, students learn the rules for and play an interactive game called Paper Pool. (Learn more)
Format: lesson plan (grade 7–8 Mathematics)
Provider: National Council of Teachers of Mathematics
Learning about rate of change in linear functions using interactive graphs: Constant cost per minute
Students drag a slider on an interactive graph to modify a rate of change (cost per minute for phone use) and learn how modifications in that rate affect the linear graph displaying accumulation (the total cost of calls). (Learn more)
Format: lesson plan (grade 6–8 Mathematics)
Provider: National Council of Teachers of Mathematics