Sixth Grade
Expanded Notation with Exponents. Remember that when you write expanded notation, you can do it several ways. We learned how to multiply the number in each place by its place value. You can do the same thing in a shorter way by using exponents. Here is an few example:
You can click the picture to make it bigger. In the above example, you multiply the number in each place by 10 to an exponent (or a power). You can tell what the exponent is by the place value. Since the 1 in the example is in the hundred thousands place and 100,000 has 5 zeros, your exponent is 5. You can also count how many numbers comes after the 1 - there are 5. It's the same thing. Remember, if a place has a zero, you don't have to write that one down. You can skip it. For the ones place - where the 4 is in the example - remember that your exponent will be 0.
If you have any questions, feel free to write! I'd be happy to help if you get stuck.
Seventh Grade
Math - We finished solving the problem, "Can you write a googolplex in a lifetime?" The students had to convert their times into just seconds, add them up, multiply 60x60x24x365x78 to find out how many seconds there are in a lifetime. Once we had that number, we could tell that there is no way to write a googolplex! Even if you wrote every second of your life, you couldn't even write a billion zeros.
Geography - We read Chapter 1, Section 2. The only thing you need to do is add your definitions to your list from Section 1.
Eighth Grade
Pre-Algebra - Scientific Notation worksheet. Look back at the examples I gave for Algebra I last week if you need help - or just email me!
Algebra I - Multiplying in Scientific Notation. Remember to look at your notes! First, multiply the base numbers. Then, add the exponents. Now...examine your new number. Is it in scientific notation? If it isn't, move the decimal to fix it. Then, add how many times you moved it to the exponent. Here is an example:
See you tomorrow!
Mrs. Swickey
