Math Mammoth
Parallel and Perpendicular Lines
In this parallel and perpendicular line instructional activity, students find equations of a line, then determine an equation of a line that is parallel or perpendicular to the original one. They graph problems and plot points. There are...
Math Mammoth
Parallel & Perpendicular Lines
In this geometry learning exercise, 4th graders list the lines that are parallel or perpendicular to each other. Then they mark with one color the line segments that are parallel and another color those that are perpendicular.
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Dichotomous Keys
Students define the word dichotomous and explain why a dichotomous key is a useful tool in identifying different species. Then they look up words they are unfamiliar with or mollusk reference books so students can
learn the names of...
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Rotational Symmetry
In this rotational symmetry worksheet, 10th graders identify and compare 10 different figures illustrated on the sheet. They write the order of rotational symmetry seen in each figure as compared to the others. They also define an object...
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Review of Geometry I
In this review worksheet, students identify the characteristics of intersecting and parallel lines They explore vertical, supplementary, alternate interior, alternate exterior  and corresponding angles. This two-page worksheet contains...
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Geometry
In this line and angles instructional activity, students explore basic geometry vocabulary. They classify polygons. Students determine the area and perimeter of given shapes. They examine the parts of a circle, find volume and surface...
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Lesson 5.3 Vocabulary Quiz: Concurrent Lines, Medians, & Altitudes
In this vocabulary worksheet, students match a given vocabulary word to the correct definition. Words include such terms as altitude, centroid, circumcenter, circumscribed circle, inscribed circle, median and orthocenter. This one-page...
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Map Making Project
Students identify and draw parallel, intersecting, and perpendicular lines and line segments. In this lines lesson plan, students draw a map with avenues and streets by drawing these lines.
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Slope of Parallel and Perpendicular Lines
In this parallel and perpendicular lines worksheet, students determine the slope of a line. They calculate the slope of a line parallel and perpendicular to a given line. This two-page worksheet contains  22 problems. Answers are...
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Right Triangle
In this right triangle activity, students find the length of sides of a right triangle. This one-page activity contains 1 problem.
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Right Triangle
In this right triangle worksheet, learners find the lengths of the sides of a triangle. This one-page worksheet contains 1 problem.
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Lines and Angles
In this lines and angles worksheet, students identify parallel and perpendicular lines. They demonstrate the characteristics of a straight line. They determine missing angle measurements. This two-page worksheet contains 3 multi-step...
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Motions In Geometry
In this motions in geometry worksheet, students draw translations, rotations, and reflections. This three-page worksheet contains examples, instructions, and 6 problems. The last page contains answers.
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Parallel Lines
In this parallel lines worksheet, 10th graders solve and complete 16 different types of problems. First, they name the lines that are parallel to those listed. Then, students find that values that make each set of line parallel. They...
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Right Triangles
In this right triangles worksheet, 10th graders solve and complete 12 different types of problems. First, they solve for a variable given each of the right triangles with the sides as indicated. Then, students determine the shorter...
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Chapter 4.5 Geometry Practice Problems
In this geometry practice problems worksheet, students write geometric proofs to prove the validity of given circumstances. Students prove parallel lines, perpendicular lines, and similar angles. This four-page worksheet contains eight...
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Properties of Geometry
In this properties of geometry worksheet, 10th graders solve and complete 12 different problems that include various theorems. First, they draw a figure that illustrates the SAS inequality property. Then, students prove that two line...
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Congruent Triangles
In this congruent triangles worksheet, 10th graders solve and complete 13 different problems. First, they use the illustrated congruent triangles to show other congruency in each problem. Then, students determine and prove the angle...
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The Coordinate Plane
In this coordinate plane worksheet, 9th graders solve and complete 10 different problems that include graphing points on a plane. First, they graph each point on the coordinate plane shown. Then, students write the ordered pair for each...
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Reasoning with Rules
In this reasoning with rules learning exercise, students solve and complete 12 different problems that include applying various rules to solve the equations given. First, they assume all segments are straight and state the rule used to...
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Parallel and Perpendicular Lines
In this parallel and perpendicular lines worksheet, students identify the slope of a line that is either parallel to a line or perpendicular to the given line. This one-page worksheet contains ten linear problems.
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Parallel and Perpendicular Lines
In this parallel and perpendicular lines worksheet, students find the slope of a line. They identify the slope of a line parallel to another line or find the slope of a line that is perpendicular to a given line. This one-page...
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The Quadrilateral Family
For this quadrilaterals worksheet, 10th graders solve and complete 10 different problems that include identifying various quadrilaterals. First, they indicate whether the statements are true or false for each. Then, students determine...
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Quadrilaterals
In this quadrilaterals worksheet, 10th graders solve and complete 10 different problems that include various types of proofs and quadrilaterals. First, they read the given information for each quadrilateral illustrated. Then, students...