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Resource Name Topic (Course) Technology Type \$? Rating Browsing: All Content in Geometry for Logic and proof Browse discussions Login to Subscribe / Save Results Ask Dr. Math FAQ: About Proofs Logic and proof (Geometry) Computer Support Material [0] Questions on "what is a proof?" answered by the math doctors of the Math Forum's Ask Dr. Math service. More: lessons, discussions, ratings, reviews,... Proofs Involving Segments If-then statements (Geometry) Computer Support Material [1] Provides some written proofs involving segments as examples of proof writing. More: lessons, discussions, ratings, reviews,... Pythagorean Theorem Lab Logic and proof (Geometry) Computer Activity [1] Students do a "web excursion" exploring various proofs and the history of the Pythagorean Theorem. More: lessons, discussions, ratings, reviews,... Reasoning Through Proofs If-then statements (Geometry) Computer Support Material [2] Provides guidelines for writing proofs. More: lessons, discussions, ratings, reviews,... Conditionals (Geometry) If-then statements (Geometry) Flash Support Material [0] This lesson explains how to use the connectives If… then, in reasoning and write simple logic sentences. More: lessons, discussions, ratings, reviews,... Converse, Inverse, Bicondition... Converse, inverse, contrapositive (Geometry) Flash Support Material [0] This mini-lesson explains the concepts and application of biconditionals, inverse, converse, and contrapositives. More: lessons, discussions, ratings, reviews,... Disproving Statements (Geometr... Logic and proof (Geometry) Flash Support Material [0] This mini-lesson explains, with the help of some examples, how to use logical reasoning to prove statements that are true and find counter examples to disprove statements that are false. More: lessons, discussions, ratings, reviews,... Inductive and Deductive Reason... Inductive reasoning (Geometry) Flash Support Material [0] This mini-lesson explains the concepts of inductive and deductive reasoning and about using them. More: lessons, discussions, ratings, reviews,... Logical Reasoning (Getting Sta... Postulates and definitions (Geometry) Flash Support Material [0] This mini-lesson defines and explains with the help of some examples, truth value, negation, postulates, and theorems. More: lessons, discussions, ratings, reviews,... Picture Proof of the Pythagore... Logic and proof (Geometry) Java Applet Tool [1] Step-by-step picture proof of the Pythagorean theorem. More: lessons, discussions, ratings, reviews,... Proof Without Words: Completin... Logic and proof (Geometry) Java Applet Tool [2] Carry out an interactive, geometric "proof without words" for the algebraic technique of completing the square. More: lessons, discussions, ratings, reviews,... Pythagoras graphical proof - M... Logic and proof (Geometry) Java Applet Tool [1] An interactive applet and associated web page that demonstrates a graphical proof of Pythagoras' Theorem. The applet shows a right triangle that is replicated and then moved around to demonstra... More: lessons, discussions, ratings, reviews,... Turtle Geometry Logic and proof (Geometry) Java Applet Tool [1] Move and turn a turtle. More: lessons, discussions, ratings, reviews,... A Geometric Proof of the Pytha... Logic and proof (Geometry) PowerPoint Tool [0] This PowerPoint presentation uses animation and color to show a step-by-step geometric proof of the Pythagorean Theorem. It is assumed that students are already familiar with the theorem and its mean... More: lessons, discussions, ratings, reviews,... Proof as Discovery: Kite Midpo... Logic and proof (Geometry) Sketchpad Tool [0] Students investigate and prove a property of kites, and use the proof to make a discovery about other quadrilaterals. The link to the tool itself is to a zip file that contains both the sketch and... More: lessons, discussions, ratings, reviews,... Proof as Discovery: Kite Midpo... Logic and proof (Geometry) Sketchpad Activity [0] Students investigate and prove a property of kites, and use the proof to make a discovery about other quadrilaterals. The link to the activity itself is to a zip file that contains both the activi... More: lessons, discussions, ratings, reviews,... Proof as Explanation: Distance... Logic and proof (Geometry) Sketchpad Tool [0] Students explore the sum of certain distances in an equilateral triangle, and develop a proof to explain their observations. The link to the tool itself is to a zip file that contains both the ske... More: lessons, discussions, ratings, reviews,... Proof as Explanation: Distance... Logic and proof (Geometry) Sketchpad Activity [0] Students explore the sum of certain distances in an equilateral triangle, and develop a proof to explain their observations. The link to the activity itself is to a zip file that contains both the... More: lessons, discussions, ratings, reviews,... Proof as Systematization: Tria... Logic and proof (Geometry) Sketchpad Tool [0] Students use Sketchpad to develop a proof for a result that was discovered and used (without proof) in an earlier activity. The link to the tool itself is to a zip file that contains both the sketc... More: lessons, discussions, ratings, reviews,... Proof as Systematization: Tria... Logic and proof (Geometry) Sketchpad Activity [1] Students use Sketchpad to develop a proof for a result that was discovered and used (without proof) in an earlier activity. The link to the activity itself is to a zip file that contains both the a... More: lessons, discussions, ratings, reviews,... Proof as Verification: Areas Logic and proof (Geometry) Sketchpad Tool [0] Students form a conjecture about the ratio of two areas in a quadrilateral, and use Sketchpad to search for a proof. In the process they verify or disprove their results for two different kinds of ... More: lessons, discussions, ratings, reviews,... Proof as Verification: Areas Logic and proof (Geometry) Sketchpad Activity [0] Students form a conjecture about the ratio of two areas in a quadrilateral, and use Sketchpad to search for a proof. In the process they verify or disprove their results for two different kinds of ... More: lessons, discussions, ratings, reviews,... GeoCon Logic and proof (Geometry) iPhone Tool \$ [1] GeoCon is designed to be used by students, teachers and math enthusiasts studying plane geometry. With GeoCon various constructions can be created with the touch of a finger. Resolve construction task... More: lessons, discussions, ratings, reviews,... Page 1