Curated OER
Dividing Line Segments into n Congruent Parts
Students identify lines, and line segments. In this geometry lesson, students divide line segments into equal congruent parts. They complete a laboratory activity dealing with lines and segments.
Curated OER
Lines, Segments, and Rays
Fifth graders use their arm, toothpicks, and marshmallows to create lines, segments, and rays. In this lines, segments, and rays lesson plan, 5th graders learn how these appear on a plane.
Curated OER
Measuring Segments
Middle and high schoolers solve 14 problems that include finding the distance between two points in different situations. First, they refer to a number line to find the measure of each point on the line. Then, pupils refer to the...
Curated OER
Introduce Middle Sounds Segmenting (Mico Version)
Mico the puppet offers a phoneme challenge for emerging readers: can they find the object with the middle sound they hear? Use the fantastic set of full-color picture cards to play this game with small groups or even the whole class....
CK-12 Foundation
Intersecting and Parallel Lines
Sometimes line segments just refuse to meet. Young mathematicians connect houses on an interactive map using line segments. They must then determine whether these line segment pairs are intersecting or parallel.
Concord Consortium
Short Pappus
It's all Greek to me. Scholars work a task that Greeks first formulated for an ancient math challenge. Provided with an angle and a point inside the angle, scholars develop conjectures about what is true about the shortest line segment...
EngageNY
Families of Parallel Lines and the Circumference of the Earth
How do you fit a tape measure around the Earth? No need if you know a little geometry! Pupils begin by extending their understanding of the Side Splitter Theorem to a transversal cut by parallel lines. Once they identify the proportional...
Florida Center for Reading Research
Phoneme Challenge
This phonemic awareness game is very similar to the classic card game war; partners divide picture cards, each taking half (included). They place one card face-up at a time and segment the phonemes aloud. Whoever has the most phonemes...
Florida Center for Reading Research
Sound Spin
Here is a phoneme segmenting game which incorporates drawing for your more artistic learners. Assemble the spinner using a brad and lay out the picture cards face up. Partners take turns spinning to get either two, three, four, or five....
Curated OER
Geometry: Identifying Lines and Rays
In this geometry: identifying lines and rays instructional activity, student answer six multiple choice questions identifying lines, line segments and rays.
Curated OER
Tangents, Secants, and Chords
In this tangents, secants and chords worksheet, 10th graders identify and solve 48 different problems that include using 3 different theorems for defining circles. First, they determine the area of each circle with C as the center and a...
EngageNY
How Do Dilations Map Segments?
Do you view proofs as an essential geometric skill? The resource builds on an understanding of dilations by proving the Dilation Theorem of Segments. Pupils learn to question and verify rather than make assumptions.
Illustrative Mathematics
Shortest Line Segment from a Point P to a Line L
One of the hardest skills for many young geometers to grasp is to move beyond just declaring obvious things true, and really returning to fundamental principles for proof. This brief exercise stretches those proving muscles as the class...
West Contra Costa Unified School District
Parallel Lines Cut by a Transversal
Parallel lines seem so right for each other. It's too bad they'll never, ever meet. Learners use tracing paper to discover relationships among angles formed by two parallel lines cut by a transversal. They apply this information to find...
EngageNY
Equations for Tangent Lines to Circles
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).
Flipped Math
Points, Lines, and Planes
Geometry is more than just vocabulary. Pupils learn the basic geometric definitions and how to identify and name points, lines, and planes. Though the first lesson is packed with related vocabulary, scholars experience four postulates...
Curated OER
Middle Sound Segmenting Accuracy
Mico the puppet wants to play a game! Can you figure out which picture card he's thinking of if he only says the middle sound? Choose three picture cards from the extensive library provided here, making sure scholars know what word each...
EngageNY
Characteristics of Parallel Lines
Systems of parallel lines have no solution. Pupils work examples to discover that lines with the same slope and different y-intercepts are parallel. The 27th segment of 33 uses this discovery to develop a proof, and the class determines...
CK-12 Foundation
Bisectors of Line Segments and Angles: Cut a Line
Geometric constructions build relationships —by simply manipulating simple tools. An interactive lesson presents a completed construction of a segment bisector and has learners analyze the important aspects. Ultimately, they should be...
PBS
Plotting Pairs of Coordinate Points in All Four Quadrants to Construct Lines
Your young graphers are motivated by watching three Cyberchase videos to plot points in all four quadrants, connect pairs of points to make a line segment, and find the point of intersection of two lines.
Curated OER
Segment and Distance
Students explore the definitions of segment and distance. They perform hands-on activities to form a segment and examine distance. Following teacher guidance, they construct congruent line segments. Independently, they find the...
Curated OER
Geometry - Segment Exercises
In this geometry instructional activity, 3rd graders draw the figure that is describe in each sentence. They use line segments and points as they draw or label each figure.
Curated OER
Geometry - Segment Exercises
For this geometry worksheet, 3rd graders complete 5 exercises with line segments. They name segment that are shown in figure, compare the lengths of segments, name intersections, and tell alternate ways of naming segments.
Curated OER
Segments
In this line segments activity, students complete problems involving points, longer and shorter segments, intersections, and more. Students complete 5 problems total.
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