Line Teacher Resources
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Module 7: Connecting Algebra and Geometry
8th - 10th CCSS: Designed
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...
Tangent Lines and the Tangent Function
11th - 12th CCSS: Designed
Construct tangent lines and make the connection to tangent functions. An informative lesson reviews the geometry origins of the tangent function. Pupils use that information to determine how to construct a tangent to a circle from a...
Connecting Algebra and Geometry Through Coordinates
9th - 10th CCSS: Designed
This unit on connecting algebra and geometry covers a number of topics including worksheets on the distance formula, finding the perimeter and area of polynomials, the slope formula, parallel and perpendicular lines, parallelograms,...
Lines of Symmetry, Shapes and Symbols
3rd - 5th CCSS: Designed
Which shapes are symmetrical? Third graders decide which shapes have lines of symmetry, and which shapes are not symmetrical. They work on 13 shapes and symbols, four of which have lines already drawn through them. Use this resource to...
Equations for Tangent Lines to Circles
9th - 12th CCSS: Designed
Don't go off on a tangent while writing equations of tangent lines! Scholars determine the equations for tangent lines to circles. They attempt both concrete and abstract examples, such as a tangent line to the unit circle through (p, 0).
Points, Lines, and Line Segments - Reteach 16.1
3rd - 5th CCSS: Adaptable
In this geometry worksheet, youngsters review a chart at the top of the page that includes the definitions of point, line, line segment, parallel lines, intersecting lines, and perpendicular lines. They apply the definitions as they name...
Distance Between Parallel Lines: Lesson
4 mins 9th - 12th CCSS: Adaptable
Rely on slope when counting won't do. Using horizontal and vertical parallel lines, the presentation shows scholars how to find the distance by counting. The video uses the relationship of the slopes of perpendicular lines to find two...
Perpendicular Lines in the Coordinate Planes: Lesson
2 mins 7th - 10th CCSS: Adaptable
Get the slope right with two easy steps. By placing two perpendicular lines on the coordinate plane, the video determines the relationship of the slopes of the two line lines. The resource is a part of an informative and extensive...
Parallel Lines in the Coordinate Plane: Lesson
4 mins 8th - 10th CCSS: Adaptable
Discover the parallel structure of parallel lines. Provided with two parallel lines on a coordinate plane, the presenter shows that the rise and run, or slope, of the two lines are the same. The resource, which is a portion of a larger...