November 2017 archive

PoCo-Opolis 500

Here is Ruby and my science video in which we are doing an experiment using static electricity. At the end of the video you can see the experiment itself which was done in the form of a race! Enjoy.

Electricity Mind Map

What I Know…

What I Wonder…

  1.  Are there more than two types of electricity (the two types being static and current)? If so what are they called and how do they operate?
  2. How was electricity discovered? Who discovered it?
  3. How has the way we use electricity changed over the years? Say from 50 years ago.
  4. How do negative and positive charges found in atoms relate to electricity in general and electricity voltage?
  5. How would you go about creating a circuit for the first time and what would be the steps?
  6. How do people get electrocuted and what does that electricity do to your body?
  7. What are alternate ways to conservatively create energy (aside from the ones I have listed)?
  8. What is the greatest difference between current electricity and static electricity? Does it have something to do with the fact that electrons do or do not move?

Everything I Know About Exponents

Prescribed Learning Outcomes for Exponents:

1) Represent repeated multiplication with exponents

2) Describe how powers represent repeated multiplications

3) Demonstrate the difference between the exponent and the base by building models of a given power, such as 3^2 and 2^3.

4) Demonstrate the difference between two given powers in which the exponent and the base are interchanged by using repeated multiplication, such as 3^2 and 2^3.

5) Evaluate powers with integral bases (excluding base 0) and whole number exponents.

6) Explain the role of parentheses in powers by evaluating a given set of powers such as (-2)^4, (-2^4) and  -2^4

7) Explain the exponent laws for multiplying and dividing powers with the same base.

8) Explain the exponent laws for raising a product and quotient to an exponent.

9) Explain the law for powers with an exponent of zero.

10) Use patterns to show that a power with an exponent of zero is equal to one.

11) Explain the law for powers with negative exponents.

12) Use patterns to explain the negative exponent law.

13) I can apply the exponent laws to powers with both integral and variable bases.

14) I can identify the error in a simplification of an expression involving powers.

15) Use the order of operations on expressions with powers.

16) Determine the sum and difference of two powers.

17) Identify the error in applying the order of operations in an incorrect solution.

18) Use powers to solve problems (measurement problems)

19) Use powers to solve problems (growth problems)

20) Applying the order of operations on expressions with powers involving negative exponents and variable bases.

….Anything else that you know about exponents.

 

Vocabulary:

Power: an expression made up of a base and an exponent.

Base: the number that gets multipled by itself in a power.

Exponent: however many times you multiply the base by itself in a power.

Integral base: a base that can be negative, positive or even zero.

Variable base: a base that is a letter in which it represents or can replace a number.

Exponential form: a shorter way to write a repeated multiplication.