Illustrative Mathematics
Global Positioning System II
Intricate details of a modern technology that many of us take for granted in our phones, computers (and some cars) are laid bare in a short but deeply investigative activity. The math behind a seemingly simple GPS device is...
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Ruler and Compass Constructions
Fourth and fifth graders examine how to construct perpendicular lines and to bisect angles using rulers and compasses in this unit of lessons. They design a number of polygons using these methods.
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Conjectures For Intersecting Circles
Students identify properties of circles. In this geometry lesson, students identify the center of two intersecting circles.They use Cabri software to create circles and move it around to make observation.
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Intersecting Lines and Segments of Measures
Mathematicians measure intersecting lines-and circles, and create chords. In this geometry lesson, students explore interrior and exterior chords created by tangent and secant lines. These segments can be inside the circleor outside the...
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Points of Intersection
Students solve systems of equations. In this solving systems of equations lesson, students look for the intersection of the two lines in the system. Students solve systems that have one solution, no solution, and infinite solutions. ...
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Solve-Real roots-Intersections
In this math worksheet learners complete a series of multiple choice questions including calculating intersections using x and y axis.
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Map Making Project
Students identify and draw parallel, intersecting, and perpendicular lines and line segments. For this lines lesson plan, students draw a map with avenues and streets by drawing these lines.
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Segments
In this line segments activity, students complete problems involving points, longer and shorter segments, intersections, and more. Students complete 5 problems total.
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A Point of Intersection
Students factor and solve systems of equation. In this algebra instructional activity, students identify the point of intersection using substitution, elimination and graphing. They write an equation given a system and a graph.
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Lines-Online Quiz
In this math worksheet, students identify pairs of lines as parallel, intersecting, perpendicular, or none of the above. Each problem is presented as a drawing of two lines. The students click in the box that tells their choice of...
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Discussion Sheet 1: Three-Dimensional Space
In this three-dimensional space learning exercise, students sketch three-dimensional spaces, determine the intersection of two surfaces, plot curves, and evaluate the limits. This one-page learning exercise contains six multi-step...
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Comparing Notations
In this comparing notation worksheet, students read graphs and write what is displayed in set-builder notation and interval notation. They also read set-builder notation and interval notation and create a graph explaining the notation. ...
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New York State Testing Program: Mathematics Test Book 1
For this mathematics test bookelt, students solve problems studied during the year. They solve problems covering topics such as probability, angle intersection, commission, percent, exponents, similar figures, and reading and...
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The Pentagram Problem
In this pentagram worksheet, students examine a pentagram and number the intersection of lines. They number the crosspoints in such a way that the sum of the numbers on each line are equal. This one-page worksheet contains 1 problem. ...
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Graphing Linear, Circular, and Parabolic Inequalities
In this graphing learning exercise, students are given nine inequalities and then must graph five of their intersections. A grid and cartoon hint are provided.
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Review of Geometry I
In this review worksheet, students identify the characteristics of intersecting and parallel lines They explore vertical, supplementary, alternate interior, alternate exterior and corresponding angles. This two-page worksheet contains...
Inside Mathematics
Picking Apples
Getting the best pick of the apples depends on where to pick. The short assessment presents a situation in which class members must analyze a real-world situation to determine the cost of picking apples. The pricing structures resemble...
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Angles in Circles
In this angles in circles worksheet, 10th graders solve 10 different problems that include tangents and chords and intersecting chords. First, they find x when given 2 intersecting chords. Then, students determine x given the diameter...
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Soap Bubble Chemistry
Students investigate soap bubbles. In this soap bubble chemistry lesson plan, students observe a demonstration using pop-it beads to represent a soap molecule. Students produce soap bubbles in the lab by making bubbles with a large...
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Math Squares
In this math squares worksheet, students problem solve a variety of equations intersected by rows and columns involving addition, subtraction, division and multiplication equations.
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Intersections, Unions, and Compound Inequalities
In this algebra worksheet, students graph inequalities on number lines. Two problems are written in interval notation. The other five problems require students to graph and then write in interval notation.
Regional Professional Development
Solving Systems of Equations by Graphing
With 30 problems, each accompanied by a blank graph, pupils get thorough practice solving systems of equations by graphing and finding the point of intersection. Answers are provided in coordinate form.
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Lesson Plans on the Intersection of History and Literature
Finding out about "the story behind the story" can provide a greater understanding of literature and its historical and social context.
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Venn Diagram-Two Circles
In this Venn Diagram activity, middle schoolers analyze the union, intersection, and subtraction of three sets of Venn Diagrams.
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