Shodor Education Foundation
Triangle Area
While the lesson focuses on right triangles, this activity offers a great way to practice the area of all triangles through an interactive webpage. The activity begins with the class taking a square paper and cutting in in half; can they...
EngageNY
Curves in the Complex Plane
Go around and around on the complex plane. The sixth instructional activity in a 23-part unit reviews representing numbers in the complex plane. Pupils graph numbers with equal moduli and notice they represent a circle. They continue to...
Curated OER
Reflecting a Triangle in the Coordinate Plane
Learners explore geometric concepts using technology. They manipulate the TI to find important math topics. This activity requires a TI-84 or higher.
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Escher-Esque Tessellations
Middle and high schoolers participate in a seven-part lesson creating Escher-Esque tessellations. They demonstrate their knowledge of geometric transformations after viewing a PowerPoint presentation, conducting Internet research, and...
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Midpoint Formula in the Coordinate System
Pupils calculate the midpoint of a line. In this geometry lesson, students identify the different parts of the coordinate plane. They use the midpoint formula to find the middle of segments between a pair of coordinates.
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Coordinate Geometry
Grab your class and get them graphing polygons on a coordinate plane! They investigate the four quadrants, discover the x and y axis, and correctly plot ordered pairs. To show their comprehension, each child creates a coordinate picture...
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Locating IIT Using Ordered Pairs
Students investigate ordered pairs. In this math lesson, students plot and locate ordered pairs in a coordinate plane and are exposed to how to read and create a map.
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Goldilocks and the Coordinate Grids
Where this activity idea is lacking in materials, it makes up for with creativity! Using "Goldilocks and the Three Bears" as the background, mathematicians plot points on a coordinate grid to create props for the story. The polygons all...
Curated OER
Shell Graphing
Fifth graders explore the four quadrants of a coordinate grid. In this graphing lesson, 5th graders trace sea shells in each of the four quadrants of a coordinate grid and then label the ordered pairs on each shell. For the...
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Concept: Points on a Grid
In this coordinate grid graphing worksheet, young scholars play a game of Battleship on the computer. They answer 21 questions about the coordinate grid and graphing.
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Distances Between Stars
In this distance between stars worksheet, students use the 3-dimensional distance formula and Cartesian coordinates to find the distances of 10 given stars from the sun. They also determine which constellation each star belongs to and...
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Equations for Curves Passing through a Given Set of Points
Learner use three random locations on the coordinate system and simplify the expression and assign result to the variable loc. They substitute guesses for the center and radius of the circle in the equation for the center of a circle and...
Curated OER
Functions, Domains and Composites
In this functions, domains and composites worksheet, learners solve and complete 23 various types of problems. First, they graph the given trigonometric function on a coordinate plane. Then, students label three points on each graph and...
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Coordinate Geometry Battleship Lesson Plan
Young scholars play a "Battleship" type of game to practice graphing on a coordinate plane. In this coordinate graphing activity, students select a point on their grid to place their "battleship." It the opposing team misses the ship,...
EngageNY
Segments That Meet at Right Angles
Can segments be considered perpendicular if they don't intersect? Learners look at nonintersecting segments on the coordinate plane and make conclusions about the lines that contain those segments. They determine if they are...
Curated OER
Algebra: Coordinates and Straight Line Graphs
Young mathematicians review what they have previously learned about coordinates and straight line graphs. Then, they access an interactive component within the lesson to gain more practice with this skill. Additionally, there are two...
EngageNY
Representing Reflections with Transformations
In the 16th lesson in the series of 32 the class uses the concept of complex multiplication to build a transformation in order to reflect across a given line in the complex plane. The lesson breaks the process of reflecting across a line...
Curated OER
Interpreting Graphs
Sixth graders interpret linear and nonlinear graphs. They create graphs based on a problem set. Next, they represent quantitive relationships on a graph and write a story related to graphing.
Curriculum Corner
7th Grade Math Common Core Checklist
With so many math standards to fit into a school year, it can be difficult keeping track of what you have and have not covered. This collection of Common Core checklists allows you to maintain a running record of when each...
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XY Coordinate Planes - Area of Trapezoids
For this online math worksheet, students calculate the area of a variety of trapezoids. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching tool!
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Cartesian Baseball
Learners examine the characteristics of a Cartesian coordinate system. They use the game of baseball to help reinforce the topic. They develop a coordinate system for the desks in their classroom.
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Scatter Brain
Examine a coordinated geometry grid to decode the hidden message. Pupils write a coded message to their parents using letter coordinates from the grid.
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Line, Planes and Points
In this geometry worksheet, 10th graders create visuals to help them understand the position of a point, line and plane in space or on a coordinate plane. There are 3 questions.
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Worksheet 39 - Polar Coordinates
In this polar coordinates worksheet, students graph polar coordinates and determine the values of a given series. This one-page worksheet contains 14 multi-step problems.