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Lesson Plan
Curated OER

The Notorious Four-Color Problem

For Teachers 9th - 12th Standards
Take a walk through time, 1852 to 2005, following the mathematical history, development, and solution of the Four-Color Theorem. Learners take on the role of cartographers to study a United States map that is to be colored. One rule: no...
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Lesson Plan
Discovery Education

Architects in Action

For Teachers 6th - 8th Standards
Hands-on and real-world applications are great ways to teach mathematical concepts. Creative thinkers examine how ratios are used to create scale models of buildings and structures. They practice working with ratios by looking at a map...
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Assessment
Mathematics Assessment Project

Hopewell Geometry

For Students 8th - 10th Standards
Right triangles from 2,000 years ago? Learners investigate different right triangles found in the earthworks of the Hopewell people, a Native American culture that populated the United States from 200BC to AD 500. Learners apply concepts...
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Lesson Plan
Curated OER

Weather, Data, Graphs and Maps

For Teachers 9th - 10th
Students collect data on the weather, graph and analyze it. In this algebra lesson, students interpret maps and are able to better plan their days based on the weather reading. They make predictions based on the type of clouds they see.
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Unit Plan
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Mathematics Vision Project

Module 7: Connecting Algebra and Geometry

For Teachers 8th - 10th Standards
The coordinate plane links key geometry and algebra concepts in this approachable but rigorous unit. The class starts by developing the distance formula from the Pythagorean Theorem, then moves to applications of slope. Activities...
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Worksheet
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PBS

Working with Coordinate Planes: Activities and Supplemental Materials

For Students 5th - 8th Standards
Seven activities make up a collection of supplemental materials to reinforce graphing on a coordinate plane. Worksheet objectives include plotting coordinates within single and four quadrants, measuring straight and diagonal lines, and...
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Lesson Plan
Mathematics Assessment Project

Modeling: Making Matchsticks

For Teachers 8th Standards
Math: The only subject where the solution to a problem is seven million matches. Young scholars first complete an assessment task estimating the number of matches they can make from a tree of given dimensions. They then evaluate provided...
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Lesson Plan
Curated OER

Watershed Investigations

For Teachers 9th - 12th
Students explore the components of a watershed and the factors that affect it. They read a topographical map and use geometry to determine the area of a watershed. Students estimate the volume of a body of water and perform runoff...
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Unit Plan
Mathematics Vision Project

Circles: A Geometric Perspective

For Teachers 10th - 12th Standards
Circles are the foundation of many geometric concepts and extensions - a point that is thoroughly driven home in this extensive unit. Fundamental properties of circles are investigated (including sector area, angle measure, and...
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Unit Plan
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Mathematics Vision Project

Similarity and Right Triangle Trigonometry

For Teachers 10th - 12th Standards
Starting with similar triangles and dilation factors, this unit quickly and thoroughly progresses into the world of right triangle features and trigonometric relationships. Presented in easy-to-attack modules with copious application...
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Lesson Plan
Curated OER

Planning a Garden Using a Grid

For Teachers 3rd
Third graders plan for a garden. In this garden planning lesson, 3rd graders investigate the use of a grid to accurately map out and plan for a vegetable garden. Students predict the space requirements for different vegetables.
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Lesson Plan
Mathematics Assessment Project

Applying Angle Theorems

For Teachers 7th Standards
Polygon ... an empty bird cage? After finding the angles of a polygon, young mathematicians use the provided methods to solve the problem in multiple ways.
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Lesson Plan
Mathematics Assessment Project

Solving Problems with Circles and Triangles

For Teachers 9th - 12th Standards
After completing a task involving examining the ratio of areas of triangles and circles in a given figure, scholars examine sample responses to identify other strategies they could use to solve the problem.
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Lesson Plan
Curated OER

Places and Production

For Teachers 9th - 10th
Learners investigate the economy and the market value of goods. In this algebra lesson, students differentiate between domestic goods value and international good value. The define and identify the importance of GDP or Gross Domestic...
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Lesson Plan
Curated OER

TE Activity: Northward Ho!

For Teachers 6th - 8th
Middle schoolers design a simple compass. They examine how the Earth's magnetic field has both horizontal and vertical components. They determine how a compass works and work with cardinal directions.
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Lesson Plan
Curated OER

Geometry: Classifying Angles

For Teachers 9th - 12th
Students measure, construct, and classify angles as acute, right, straight, and obtuse. Once they have completed an angle worksheet, students use a map of South Carolina to locate cities by constructing the aforementioned angles.
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Lesson Plan
Mathematics Assessment Project

Sorting Equations of Circles 2

For Teachers 9th - 12th Standards
How much can you tell about a circle from its equation? This detailed lesson plan focuses on connecting equations and graphs of circles. Learners use equations to identify x- and y-intercepts, centers, and radii of circles. They also...
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Lesson Plan
Mathematics Assessment Project

Representing 3-D Objects in 2-D

For Teachers 9th - 12th Standards
How  does the shape of the surface of water in a container change as water leaks out? After tackling this question, learners take part in a similar activity with more complex figures.
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Lesson Plan
Curated OER

Rational and Irrational Numbers 2

For Teachers 9th - 12th Standards
Is the circumference of a circle always, sometimes, or never rational? Learners answer questions individually and also work in groups to look at sums and products of rational and irrational numbers. They must also be able to use the...
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Lesson Plan
Curated OER

Modeling Conditional Probabilities 1: Lucky Dip

For Teachers 9th - 12th Standards
Check out this detailed lesson plan on conditional probability!  Learners work individually and also collaboratively to analyze the fairness of a game and justify their reasoning. it includes detailed notes and many helpful suggestions...
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Lesson Plan
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Curated OER

Interpreting Algebraic Expressions

For Teachers 9th - 12th Standards
Interpreting algebraic expressions is a fundamental skill in beginning algebra. This activity approaches the task in numerous ways. First, learners assess their understanding with a short worksheet on converting between words and...
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Lesson Plan
Mathematics Assessment Project

Identifying Similar Triangles

For Teachers 7th - 9th Standards
Math whizzes work with angle sums and exterior angles to figure out the measure of other angles. This particular publication provides comprehensive support in the form of an anticipatory activity, questions designed to prompt discussion,...
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Lesson Plan
Curated OER

Analyzing Congruence Proofs

For Teachers 9th - 12th Standards
Looking at numerous examples of triangles, each with different properties, geometers develop their understanding of congruency. They use the notation of a counter-example to disprove certain conjectures and prove geometric theorems and...
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Lesson Plan
Mathematics Assessment Project

Representing Trigonometric Functions

For Teachers 9th - 12th Standards
Discover the classic example of periodicity: Ferris wheels. Young mathematicians learn about trigonometric functions through Ferris wheels. They match functions to their graphs and relate the functions to the context.

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