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Easy Worksheet: Congruent Segments
For this congruent segments worksheet, high schoolers solve 6 short answer problems. Students justify steps in a proof by identifying the reason for various steps. High schoolers justify steps of proofs using the transitive property,...
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Easy Worksheet: Counterexamples
In this counterexamples worksheet, students solve 10 short answer problems. Students prove the given statements false by providing a counterexample thus disproving the statement.
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Proofs: Solving Equations
In this proofs worksheet, high schoolers solve 4 short answer problems. Students identify the correct reason for each step in solving each multi-step equation.
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Writing to Argue
Students write an argument using a clear structure and argumentative techniques. In this persuasive writing lesson, students brainstorm, write, and peer edit an argumentative essay. Worksheets include the prompt, facts and quotes, and a...
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Conducting Research
Third graders conduct research. In this conducting research lesson, 3rd graders discuss the importance of nonfiction text in providing factual information. Students write questions about an assigned topic and research using informational...
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Vertical Tower 2
In this trigonometry activity, students prove that for the given conditions of the problem that cos y = cos2 x. The one page activity contains one problem with the solution.Â
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Algebraic Proofs for Repeated Digits
In this proof worksheet, students write two proofs for why they get repeated digits when following a series of math operations. The solutions are provided.
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Inductive vs. Deductive Proof
Twelfth graders differentiate between inductive and deductive proofs. In this differentiating between inductive and deductive proofs lesson, 12th graders compare strengths and weaknesses of each type of proof. Students discuss an...
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From Hypothesis to Conclusion...Reading Maps to Understand Proofs
Tenth graders explore the concept of proof. In this proof lesson, 10th graders work in groups to collectively write proofs for directions to places on a map. Students give directions to specific places in big cities such as from the New...
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Lesson 3.4 Practice A: Theorems and Postulates
In this theorem and postulate instructional activity, students identify theorems and postulates that justify given statements. They determine the measure of specified angles. This two-page instructional activity contains a total of 37...
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Proving Figures Congruent
In this proving figures congruent worksheet, 10th graders solve and complete 11 different problems. First, they determine the additional information needed to prove the triangles congruent. Then, students determine which postulate, if...
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Geometry Proofs
In this geometry proofs worksheet, 10th graders solve and complete 6 different problems that include various proofs. First, they prove a triangle has equivalent angles as given. Then, students prove two angles supplementary as described.
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Proofs in Coordinate Geometry
In this coordinate geometry activity, students identify the lengths of a quadrilateral and find the slope of a line. They use proofs to identify the characteristics of given quadrilaterals. This one-page activity contains ten problems.
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Congruent Triangles
In this congruent triangles worksheet, 10th graders solve and complete 10 different problems that include various forms of triangles. First, they name the method for proving each set of triangles congruent using the given information....
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Congruent Triangles
In this congruent triangles worksheet, 10th graders solve and complete 10 different problems to determine whether each set of triangles is congruent or not. First, they copy each diagram onto a piece of paper and mark up the paper with...
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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...
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Congruent Triangle Proofs Quiz
A congruent triangles quiz challenges teenage mathematicians to complete a pair of geometric proofs. Each problem includes a picture of the triangles in question, a given set of information, and the five steps needed to finish the proof....
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Quiz: Direct Euclidean Proofs
In this Euclidean proof learning exercise, students observe models and read given proofs. Students determine conclusions based upon the given information. This one-page learning exercise contains ten Euclidean proof problems.
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Pre-Proof Warm-Ups
For this pre-proofs worksheet, 10th graders solve and complete 10 different problems that include various proofs and their definitions. They use the diagram shown and the given information to write the direct conclusion for each case....
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Identify Similar Triangles With Proofs
In this similar triangle activity, students write a two-column proof to explain why determined triangles are similar. Given some line lengths and angle measurements, students use proofs to identify the ratio of specified angles. This...
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Proofs
In this proofs learning exercise, 10th graders solve and graph 8 different equations. First, they prove that each triangle is either congruent or similar. Then, students use the concept of corresponding parts of congruent triangles to...
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Divisibility Rules
In this divisibility rules worksheet, students solve 18 different problems that include applying the divisibility rules to each. First, they identify the hypothesis and conclusion in logical deduction. Then, students determine the...
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Proving Triangles Congruent
In this proving triangles congruent worksheet, 10th graders solve 4 different proofs for congruent triangles. First, they mark all congruent parts on each figure, then complete the prove statement and identify the postulate that can be...
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More Congruent Triangles
In this congruent triangles learning exercise, 10th graders solve 6 various forms of problems that include a proof and a word problem. First, they draw and label triangles and indicate the additional pairs of corresponding parts that...