Illustrative Mathematics
Why Does SSS Work?
While it may seem incredibly obvious to the geometry student that congruent sides make congruent triangles, the proving of this by definition actually takes a bit of work. This exercise steps the class through this kind of proof by...
Charleston School District
Review Unit 8: Geometry Applicaitons
Pupils complete a review activity that highlights the key problems from the first eight lessons in the series. Topics include the Pythagorean Theorem and its converse, as well as finding volume of three-dimensional figures.
Curated OER
Coordinates Graphing
In this geometry worksheet, students are given points to plot on a coordinate plane. They identify plotted coordinate pairs. There are 10 questions.
Curated OER
Geometry Coordinates
In this geometry worksheet, 10th graders calculate ordered pairs using a table to plot the coordinate pairs to make a graph. There are 3 graphing question.
Curated OER
Handy Reflections
Learners explore reflections on a coordinate plane in this lesson. They trace their hand on a grid, determine the coordinates of each point, and create a scatter plot of their points. Pupils use this information to investigate aspect...
Curated OER
Constructing Tangrams
Seventh graders visualize and identify geometric shapes after applying transformations on a coordinate plane. In this tangrams lesson, 7th graders construct a set of tangrams and then answer extension questions related to measurement,...
Curated OER
Geometric Transformations
Pupils solve problems involving transformations of geometric figures. They review graphing points in the coordinate plain, plot points and connect to create a triangle. Then, they reflect triangles over the x and y axis and use graphing...
Curated OER
Graphing Coordinates
Sixth graders practice graphing coordinates. In this geometry lesson, they use the x and y axis to locate points that must be connected in the right sequence to form a straight line.
Curated OER
Coordinate Planes - Area of Triangle
For this online math worksheet, high schoolers find the area of a variety of triangles given the measurements of their vertices. This excellent resource allows the students to check their answers, and to get "hints" should they run into...
Curated OER
Melissa's Garden
For this math worksheet, students identify the location of pictures on a coordinate plane. They write some answers as an ordered pair. They read ordered pairs and identify the picture at a specified location. Six problems are on a page....
Curated OER
Robot Cartography
Students identify points plotted on the coordinate plane. In this geometry lesson, students learn to read a map using concepts of a coordinate plane grid. They find the path given a map to tell them where to go.
PBS
Plotting Pairs of Coordinate Points in all Four Quadrants to Construct Lines
Here is a lesson on coordinates that has pupils view three Cyberchase video clips illustrating the definition of "point" and "line." Along the way, learners will discuss what characters from the videos do, and where problems lie in...
School Mathematics Project
Resource Sheets
This extensive and far-reaching collection of worksheets puts a new twist on many basic concepts. Learners use multiplication to trace a path from one point to another, tile a plane by converting between improper and proper fractions,...
Curated OER
Determine the Coordinate of Transformations
Students investigate transformation on a coordinate plane. In this geometry lesson, students identify pairs of coordinates and their location on the grid. They perform rotation and reflection of each polygon.
Curated OER
Latitude and Longitude: Geography and Geometry!
Second graders use latitude and longitude coordinates to pinpoint an exact location on the map. In this geography instructional activity, 2nd graders utilize handouts from the Maritime Museum in order to gain practice in finding...
Curated OER
Risk Assessment and Geometry
Tenth graders study the concept of risk analysis as it relates to geometry. In this spatial relationship activity, 10th graders are provided a set of coordinates to analyze a piece of land described. Students write a description that...
Curated OER
Crystals: Geometry and Groups
Students discuss the importance of examining crystals and experiment growing them. In groups, they complete a project in which they use groups in geometry just like crystallographers. They practice solving the groups and proofs and...
Curated OER
Graphing a Triangle
In this geometry skills learning exercise, students graph a triangle using the provided information and then respond to 3 short answer questions regarding it.
Curated OER
Coordinates
Fifth graders explore a plotting on a coordinate plane. Using a specified website, they play a "Maze Game" where they navigate a robot through a minefield. As students work through the problems, the rigor of the problems increase. ...
Curated OER
Coordinates
Fourth graders explore plotting on a coordinate plane. They visit a given website and play a game called, "Billy Bug." Students use coordinates to guide the bug to its food. Afterward, they complete follow-up problems to reinforce the...
Mathematics Vision Project
Module 6: Congruence, Construction, and Proof
Trace the links between a variety of math concepts in this far-reaching unit. Ideas that seem very different on the outset (like the distance formula and rigid transformations) come together in very natural and logical ways. This...
EngageNY
Criterion for Perpendicularity
The Pythagorean Theorem is a geometry pupil's best friend! Learners explain the equation a1b1 + a2b2 = 0 for perpendicular segments using the Pythagorean Theorem. They are able to identify perpendicular segments using their...
West Contra Costa Unified School District
Finding the Equation of a Circle
Tired of going around and around for a resource on circles? Scholars determine the general equation of a circle on a coordinate plane, then participate in an activity matching equations to the radii and centers of the circles...
EngageNY
Transformations—The Next Level
Transform your geometry instruction by incorporating role play into math class. Pupils begin by completing an assessment to locate unknown angles, and then performing a simulation activity to better understand...
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