Post on 16-May-2018
transcript
Module 4 Lesson 1 Wrtiting Equations Using Symbols
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Students write mathematical statements using symbols to represent numbers.
Monday, January 4, 2016
Welcome BACK!!!
Module 4. Lesson 1!
Module 4 Lesson 1 Wrtiting Equations Using Symbols
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Using letters to represent numbers in mathematical statements was introduced by Rene Descartes in the 1600's. In that era, people used only words to describe mathematical statements. The use of letters, or symbols, to represent numbers not only brought clarity to mathematical statements, it also expanded the horizons of mathematics.
Module 4 Lesson 1 Wrtiting Equations Using Symbols
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Words
Equation/Expression
Which representation do you prefer?
The sum of a number and twelve, all divided by 2, is the same as 10
x + 122
= 12
Module 4 Lesson 1 Wrtiting Equations Using Symbols
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The number 1,157 is the sum of the squares of two consecutive odd integers divided by the difference between the two consecutive odd integers.
Words
Equation
Which representation do you prefer?
Module 4 Lesson 1 Wrtiting Equations Using Symbols
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Why do we want to learn how to write mathematical statements using symbols?
Makes lives less complicated and cumbersome.
Module 4 Lesson 1 Wrtiting Equations Using Symbols
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12 plus 3 times a number is 33
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Open to page S.1 of Module 4
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The sum of four consecutive even integers is 28.
Module 4 Lesson 1 Wrtiting Equations Using Symbols
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A number is four times larger than the square of half the number.
Module 4 Lesson 1 Wrtiting Equations Using Symbols
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Steven has some money. If he spends $9.00, then he will have (3/5) of the amount he started with.
Module 4 Lesson 1 Wrtiting Equations Using Symbols
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The sum of a number squared and three less than twice the number is 129
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Homework.Page S.2.Lesson 1.Problem Set.19.
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