Line Teacher Resources
Find Line educational ideas and activities
Showing 41 - 60 of 3,313 resources
Investigating Properties of Lines in the Plane
Practice the properties of lines in the coordinate plane. Young mathematicians use Cabri on their graphing calculator to determine the slope ratios. They use the change in y-coordinates/change in x-coordinates. Additionally, they find the equation of lines using slope and a y-intercept.
Lines in the Coordinate Plane
In this lines in the coordinate plane worksheet, 10th graders solve and complete 46 various types of problems. First, they write an equation of the line with the given slope that contains the given points. Then, students graph each line using slope-intercept form. They also write equations for the horizontal line and the vertical line that contain the given points.
Graphing Special Lines
In this graphing special lines learning exercise, students solve 18 short answer and graphing problems. Students graph lines given two points. Students find the slope of a line given two points. Students determine if two lines area parallel, perpendicular, the same line, or none of the above.
Take geometry into the real world! You'll find just about everything you need for a fun group project reinforcing terms such as: quadrilateral, parallel lines, hexagon, circumference, vertex, acute angle, polygon, and many more. Of course, you can easily add to this 21-term list, which is included in two formats: with definitions and without. Introduce kids to shapes in the world using the attached slide show featuring architectural elements. What geometric concepts do they see? There is an interactive quiz as well as games to reinforce the terms. Then, groups take photographs around campus displaying as many of the words as possible. They create a slide show and present it to the class. If you don't have PhotoStory, PowerPoint will work just fine.
Geometry: Parallel and Perpendicular Lines
This basic handout would be good for skills practice or a review of parallel and perpendicular lines. Review the definitions, then practice writing equations of lines that pass through a specific point and are either parallel or perpendicular to a given line using the point-slope formula. Although listed with a S-ID common core identifier, there are no problems that involve anything other than using a single "data"point.
Whose Line Is It Anyway?
Explore symmetry, in this geometry lesson. View "Line Symmetry," an interactive lesson, fold cutout shapes to find the line of symmetry, and record real objects in the classroom that exhibit a line of symmetry.
Triangle Exterior Angles Theorem
Pupils identify the measure of missing exterior angles. In this geometry lesson,students define and apply the exterior angle theorem to solve problems. They use Cabri software to create different angles and make investigations.
New! Using Linear Equations to Define Geometric Solids
Making the transition from two-dimensional shapes to three-dimensional solids can be difficult for many geometry students. This comprehensive lesson starts with writing and graphing linear equations to define a bounded region and calculating the areas and perimeters of the space. Using this as a base, the lesson then has learners revolve these regions to create solid figures and calculate the resulting volume. A real-world example using a bowling ball and visualization software caps off this in-depth instruction.
Working in pairs, geometry students will construct a dilation and consider the properties associated with the similar figures that are created to verify the properties of dilation. This activity can be done using dot or graph paper and rulers, compasses, and protractors, geoboards, or dynamic geometry software. Extensions can be added by considering dilations affected by different scale factors, or by dilating other figures such as triangles or parallelograms.
Discovering the Formula for the Area of a Triangle
Most high schoolers are very familiar with the area of the triangle being equal to 1/2 base times the height. Here, they will develop and test their formula for the area of a triangle when given two adjacent sides and the included angle. After they develop their formula, they will use a dynamic geometry software system, such as Geometer's Sketchpad or GeoGebra to test their conjecture.
What Is Hyperbolic Geometry?
Ninth graders discuss the concept of hyperbolic geometry. They complete Internet geometry activities and write essays comparing and contrasting hyperbolic geometry to Euclidean geometry.
Symmetrical Geometry Paintings
Here is a clever, cross-curricular lesson that combines art and geometry. Learners design a painting that uses geometrical shapes and is symmetrical. Sponge-shaped geometrical figures are used to design half a page and fold them to create the other half. Everyone displays their pictures of geometry and symmetry.
Geometry Review Exam
In this geometry review worksheet, 10th graders solve and complete 100 various types of problems studied in geometry. First, they find the slope-intercept form of a line passing through two points and parallel to a given line. They also find the length of the leg of a right triangle. in addition, they determine the area of a given quadrilateral.
Geometry and Shapes
High schoolers discuss and identify polygons and lines. In this geometry lesson, learners review liner, square and cubic units so they can incorporate it into the lesson on measurement and creating packing that are cost effective.
Geometry End Review/Test
In this end of the year geometry review worksheet, 10th graders solve and complete 140 different multiple choice problems. First, they find the slope-intercept form of a line passing through a point and parallel to a given line. Then, students determine the transformations that best represent an isometry. They also find the measures of various angles if a triangle within a circle.
Geometry Course Review
In this geometry review set of worksheet, 10th graders solve and complete 139 various types of problems. First, they find the slope-intercept form of a line passing through a point and parallel to a line given. Then, students find the length of the leg of a right triangle. They also determine the area of various quadrilaterals.
In this geometric figures review worksheet, 10th graders solve and complete 50 various multiple choice problems. First, they find the coordinates of the vertices when a figure is reflected over a line. Then, students name the theorem or postulate that justifies the congruence illustrated. They also find the slope of a line passing through two given sets of points.
Angles (Part 3)
As a preparation for something called the angle game, a geometry video covers the concept of parallel lines, transversals, slope, opposite angles and corresponding angles. It is the third part of a series detailing the rules and laws regarding angles.
Middle schoolers construct a three-dimensional model of a city using both similar and congruent figures and geometric transformations. City must have at least ten buildings with each building labeled and may be constructed out of paper or modeling clay. A two-dimensional representation, drawn to scale, must be included as well.
This video demonstrates how to tell algebraically whether lines are perpendicular. Using three different linear equations in different forms, each is rewritten in slope-intercept form, and their slopes are compared to show whether they are negative inverse of each other.