Curated OER
Rounding
In this rounding instructional activity, students solve 40 problems in which whole numbers are rounded to the nearest 10. 100 or 1000. Students also round to the nearest dollar.
Curated OER
Life in a Geometrical Town
In this geometry worksheet, students create a map that uses various geometrical concepts. The final project is the creation of a "geometrical town." Rubric for grading is included.
Curated OER
Sonar Mapping
Students use a shoe box to create a seafloor model and use cardboard for layering inside of the shoe box to simulate the ocean floor. They probe the ocean floor to simulate sonar echoes. Finally, students graph their data to get a...
Curated OER
Describing How to Get a Shop or Restaurant
In this descriptive paragraph learning exercise, students first draw a map showing how to get to a location. Students then write sentences explaining how to get to a location using directional phrases. Students then write the sentences...
Curated OER
Exploring Quadratic Graphs
In this algebra worksheet, learners solve quadratic equations. They factor and graph their solutions. There are 5 questions with an answer key.
Curated OER
Math: Gears and Wheels
Twelfth graders solve problems involving linear and angular speed. Using information about a compact disc, they solve the problem using multiple rates and conversion factors. Students also solve additional problems involving bicycle...
Curated OER
Working With Angles
In this math worksheet, students collaborate with a "study buddy" or "coach" to learn whether an angle is acute, obtuse or right. Students follow the directions to go through the process of deciding what classification an angle has....
Curated OER
Constructions of Isosceles and Equilateral Triangles
Pupils explore the difference between drawing and constructing a triangle utilizing The Geometer's Sketchpad on the computer. They create, develop and script constructions for both isosceles and equilateral triangles. Each student has to...
Curated OER
Interstate Highway Trip
In this algebra learning exercise, 11th graders calculate a path taken without repeating and crossing the same path more than once. They are given clues to help-them find the right answer. There is a solution key with his word problem.
Math Open Reference
Math Open Reference: Intersection of Two Straight Lines
Learn about the intersection of two straight lines with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhance further explanation. Includes links to related topics.
Illustrative Mathematics
Illustrative Mathematics: The Intersection of Two Lines
The purpose of this task is to introduce students to systems of equations. It takes skills and concepts that students know up to this point, such as writing the equation of a given line, and uses it to introduce the idea that the...
Texas Instruments
Texas Instruments: Intersecting Lines and Planes
In these problems, students are asked to find: point of intersection of two lines; coefficients that make two lines parallel; intersection of diagonals of a quadrilateral; and the point of intersection of three planes.
University of Regina (Canada)
University of Regina: Math Central: Angle of Intersection of Two Lines
Use this question response site from the University of Regina about finding the acute angle of intersection between the two given lines. The response contains a visual aide and commentary to help.
PBS
Pbs Learning Media: Two Points Determine a Line
In this video segment [2:10] from Cyberchase, Digit must make a straight line between the two points and then follow the path created.
PBS
Pbs Learning Media: Two Sightings, Different Information
Jackie and Matt are looking at the same object along two different lines, in this video segment from Cyberchase.
Other
800score: Intersecting Angles
Read a description of intersecting lines and all about the different kinds of angles they form. Includes examples.
Texas Instruments
Texas Instruments: Angles Formed by Two Intersecting Lines
Students will investigate the properties of angles formed by intersecting lines. They examine the definition of adjacent angles, supplementary angles, and vertical angles and learn about two important geometric theorems dealing with...
City University of New York
Lehman College: An Introduction to Lines
Use this site for two short lesson plans regarding Euclidean and Spherical lines. Intersecting and parallel lines are discussed. The lesson contains activities for two days of class.
Texas Instruments
Texas Instruments: Intersecting Lines and Vertical Angles
In this activity, students visualize and explore the angles that are formed when two lines intersect. By measuring angles formed by intersecting lines, they enhance their understanding of vertical angles, supplementary angles, and a...
Texas Instruments
Texas Instruments: Parallel Lines, Transversals and Angles
This activity allows students to: 1. Identify the pairs of angles formed when a transversal intersects two lines.: 2. Measure angles Using Cabri Jr. 3. Identify relationships between pairs of angles when a transversal intersects parallel...
Other
New York State Education Department: Eighth Grade Math, Book Two (2010) [Pdf]
Part two of three; The March 2010 8th grade Math test from the State of New York. The test is six open-response questions covering topics such as geometry (intersecting / parallel lines, Pythagorean Theorem), measurement (maps), and...
University of Regina (Canada)
University of Regina: Math Central: Introduction to Slope for Middle Years Mathematics
This collection of five middle school math lessons covers the topic of plane geometry, specifically the concept of slope. The first activity introduces learners to plotting points on a Cartesian grid using a Geoboard. Lesson two moves...
Illustrative Mathematics
Illustrative Mathematics: A Rei the Circle and the Line
Students are required to solve a system of equations in this task which will demonstrate their understanding of the correspondence between intersection points of the two graphs and solutions of the system. Aligns with A-REI.C.7.
Sophia Learning
Sophia: Finding Intersections: Lesson 5
This lesson demonstrates graphing two lines on a coordinate plane and determining the point where two lines intersect. It is 5 of 5 in the series titled "Finding Intersections."