"Definition and Proposition" Proof of Parallel Lines PPT Courseware (Lesson 1)

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"Definitions and Propositions" Proof of Parallel Lines PPT courseware (Lesson 1), 24 pages in total.

Part One: Learning Objectives

definition

Propositions and proposition composition

Classification of propositions

Definition and Proposition PPT, Part 2: Understanding New Knowledge

Knowledge point definition

1. Describe the meaning of names and terms and make clear provisions, that is, give their definitions.

2. Definition is an important basis for proof. It can be applied both as a property and as a judgment method.

Knowledge points Propositions and the composition of propositions

Discuss

Which of the following statements make a judgment about the matter, and which do not?

Communicate with peers.

(1) Any triangle must have one angle that is a right angle;

(2) The opposite vertex angles are equal;

(3) No matter what natural number n is, the value of the formula n2-n+11 is a prime number;

(4) If two straight lines are parallel to a third straight line, then the two straight lines are also parallel to each other;

(5) Do you like mathematics?

(6) Construct the line segment AB=CD.

Definition and Proposition PPT, Part 3: Class Summary

(1) The proposition must be a complete sentence and have the function of "judgment".

(2) Propositions only need to have the function of "judgment", regardless of whether the judgment is correct or not.

Requirements for judging propositions and rewriting propositions:

To determine whether a sentence is a proposition, the key is to see whether it makes a clear judgment and whether it is a complete sentence. When rewriting a proposition, it is not to mechanically add "if..." and "then..." to the original proposition, but to keep the essence of the rewritten proposition unchanged and make the conditions and conclusions clear. The main requirements are: (1) The rewritten The content of the proposition must be consistent with the proposition before rewriting; (2) The sentences of the rewritten proposition must be complete and the sentences must be smooth. If necessary, some modifications must be added to the original proposition and the originally omitted parts must be filled in.

Keywords: Free download of Beijing Normal University edition eighth-grade mathematics PPT courseware, Volume 1, definitions and propositions PPT download, proof of parallel lines PPT download, .PPT format;

For more information about the PPT courseware "Proof, Definition and Proposition of Parallel Lines", please click on the PPT Definition and Proposition of Proof of Parallel Lines tab.

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Update Time: 2024-11-25

This template belongs to Mathematics courseware Beijing Normal University Edition Eighth Grade Mathematics Volume 1 industry PPT template

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