Today in class, we finished up our work on section 1. I took questions over the worksheet due for today and then we corrected it. Students then completed the lesson test over section one to check their progress on the concepts.
Students took some notes over our next section, 1.2 Algebraic Expressions and Models. We went over the notes together and I sowed some example problems. These examples dealt with evaluating exponents, evaluating expressions (with and without variables) using the order of operations and simplifiying expressions by combining like terms.
Students did a worksheet in class that will be graded and will complete some work from the book.
Homework:
1.2 worksheet (if not completed in class)
pages 14-16 #'s 15-18, 20-52 even & 62-67
Posting a Comment for points:
Explain why (-3)^4 and -3^4 have different solutions
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Hi MR. BUCK!!!
how ya doin?
okay so im jus leavin my comment!!
yahh me!
i dont know if im supose to put anything important on here, so im not.
hehe.
but this comment thingy wouldnt work 4 me last nite cuz my computer is slow but yah.
well i guess this is good bye mr. buck!
See u friday!
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hellow, finnnal got on
(-3)^4 is (-3)(-3)(-3)(-3) but -3^4 is 3x3x3x3.
In the first example *(-3)^4* the order of operations state that it really is (-3)(-3)(-3)(-3)
while the second is -3^4 which becomes -1*3*3*3*3.
hey Mr. Buck its me Eli. I found the internet i guess.
In (-3)^4, -3 is the base, and the answer turns out positive. In -3^4, the negative is not included, so the base is just 3, and the answer will be negative.
The first -3 would be a positive because it is in parenthesis and the second answer would be a negative.
It is because the negative is in the equation with the paranthesis and the other 3 has a negative one in front of it.
When the -3 is in parenthesis, you have to multiply -3 with the negative four times.
If its without parenthesis, you just multiply the 3 four times and carry the negative sign.
(-3)^4 comes out positive because (-3)(-3)(-3)(-3) has four negatives and an even amount of negatives equals a positive where: -3*3*3*3 is negative because there is only one negative in the problem.
(-3)^4 and -3^4 are different because (-3)^4 would break down to be (-3)(-3)(-3)(-3) and that would equal 81. -3^4 would breakdown to be -3 3 3 3 and that would equal -81. i think anyways.
(-3) ^ 4 would be 81 because they are all negative numbers and 4 negative equal a positive. -3 would equal -81 because you only have one negative.
they are not the some becuse one is (-3)(-3)(-3)(-3) and the other is 3*3*3*3 then u add the - to the solution
hey mr buck! im not sure if this would be late work or make-up work because of the day i missed but here it is anyway.
(-3)^4 and -3^4 have different solutions because:
(-3)^4 is (-3)(-3)(-3)(-3)
-3^4 is 3x3x3x3 and u just keep the negative.
ok? thank you!!
-Jasmine Wheeler
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