Radford University
Triangular Irrigation
Try to keep the pipe short. Learners investigate where to place a water pump to use the least amount of pipe. Scholars use their knowledge of reflections and congruent triangles to find the best location for the water pump. Finally, they...
Curated OER
Conjectures For Intersecting Circles
Students identify properties of circles. For 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.
Curated OER
What's The Idea?
Sixth graders explore line segments, rays, parallel, perpendicular and intersecting lines. The teacher discusses, with the class, real life items that represent each geometric idea studied. They use cotton balls, strings and popsicle...
Curated OER
Math 224: Review of Linear Systems
In this linear systems worksheet, students find the intersection of two planes, and identify solutions for a linear equation. This two-page worksheet contains five problems.
Curated OER
The Coordinate Plane
For this coordinate plane worksheet, 9th graders solve and complete 10 different problems that include graphing points on a plane. First, they graph each point on the coordinate plane shown. Then, students write the ordered pair for each...
Curated OER
Parallel Lines and Transversals
In this parallel lines and transversals worksheet, 10th graders solve nine different problems related to measuring parallel lines and transversals. First, they name two more pairs of parallel segments, two more skew segments, and two...
Curated OER
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...
Curated OER
You Must Still Think Yourself, CAS Can Only Help
Have the class learn about and make conjectures about a line intersecting a cubic. In this making conjectures about a line intersecting a cubic lesson, young scholars draw lines that intersect a cubic at three different...
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...
Curated OER
Points of Intersection
Young scholars solve systems of equations. In this solving systems of equations lesson, students look for the intersection of the two lines in the system. Young scholars solve systems that have one solution, no solution, and...
Curated OER
A Point of Intersection
Pupils factor and solve systems of equation. In this algebra lesson, students identify the point of intersection using substitution, elimination and graphing. They write an equation given a system and a graph.
Curated OER
Segments
In this line segments worksheet, students complete problems involving points, longer and shorter segments, intersections, and more. Students complete 5 problems total.
Curated OER
Maximum and Minimum Points
In this maximum and minimum points worksheet, students solve and complete 12 various types of problems. First, they find the area of the smallest triangle given the point of intersection. Then, students find the volume of a box that has...
Curated OER
Geometry: Lesson 1: Points, Lines, Segments, Angles
Fourth graders examine the concepts of, draw, and label points, lines, segments, and angles, They draw, label, and identify horizontal, vertical, intersecting, parallel, and perpendicular lines. They complete an associated worksheet that...
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...
Curated OER
Soap Bubble Chemistry
High schoolers investigate soap bubbles. In this soap bubble chemistry instructional activity, students observe a demonstration using pop-it beads to represent a soap molecule. High schoolers produce soap bubbles in the lab by making...
Curated OER
Angles in Circles
In this angles in circles learning exercise, 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...
Curated OER
Planes and Lines
In this geometry worksheet, students identify the plane that passes through a point and define the theorem that represents parallel and perpendicular lines. There is an answer key.
Curated OER
Math Squares
In this math squares activity, students problem solve a variety of equations intersected by rows and columns involving addition, subtraction, division and multiplication equations.
Illustrative Mathematics
Tangent to a Circle From a Point
Learners see application of construction techniques in a short but sophisticated problem. Combining the properties of inscribed triangles with tangent lines and radii makes a nice bridge between units, a way of using...
Council for Economic Education
India and the Caste System in 200 B.C.E.
Many young people know India had a caste system that prevented social mobility and structured Indian society. The connections between the caste system and economics may not be as clear, however. A reading, chart activity, and PowerPoint...
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.
Illustrative Mathematics
The Circle and The Line
Here is a resource where algebra learners show their understanding of a system of equations involving a circle and a line. Once graphed, learners see two points of intersection, one where the ordered pair is read, and a second where...
Curated OER
Linear and Quadratic System
Learners find the common point of a linear and quadratic system given a graph of the system. Then they find a specific point located only on the parabola.