Thursday 4/30

Today we wrapped up our look at the volume of spheres with Lesson 14.3.

Homework: Textbook page 780

Wednesday 4/29

We found the volume of spheres today in Lesson 14.3. Remember, all you need to know to find the volume of a sphere is the radius [V = 4/3(pi)(r^3)]. Sometimes determining the radius requires a bit of work, though.

Homework: Textbook pages 778-779 (#4-5)

Tuesday 4/28

Today we investigated the properties and volumes of cones in Lesson 14.2. We derived the formula for the volume of a cone via an experiment in class.

Parents: You can perform this experiment at home with your son or daughter using the cutouts in the book for Problem 3. It would be a great way for them to demonstrate for you their understand of volume of conical prisms. Ask them to explain how the experiment relates to the formula for volume.

Homework: Cone Volume worksheet

Monday 4/27

You took your 8th grade science CST test today. I hope it went really well for you, and that you tried your best. That's all anyone can ever ask.

Those that had class with me later in the day, we worked on MATHia. Those that did not meet with me today should do some extra MATHia time on their own to keep pace.

Homework: MATHia practice

Friday 4/24

Don't forget: Science CST on Monday. Come prepared to do your best!!

Here is this week's extra credit:






 Week31ExtraCredit

Brittany's grandmother sends her to the store to buy a new flour canister for her kitchen. Brittany finds two canisters that she likes (the two drawn above) and is having trouble deciding which one to purchase. Can you help?

What's the circumference of canister 1? *

What's the circumference of canister 2? *

What's the volume of canister 1? *

What's the volume of canister 1? *

What's the volume of canister 2? *

Suppose both canisters cost the same amount. Which one should she buy for her grandmother? Explain your reasoning. 

Thursday 4/23

We continued our work with cylinders and volume today with the second half of Lesson 14.1.

Homework: Problems 4-6  Pages 755-759 & Cylinders worksheet (Day 2)

Wednesday 4/22

Today we began our look at volume by investigating the properties of cylinders in Lesson 14.1. We did the first two parts of the lesson today, and will continue with the rest of it tomorrow.

Homework: Problems 2 and 3 ( pages 749-754) and                           Cylinders worksheet (Day 1)

Tuesday 4/21

We took our Chapter 13 test in class today.

Homework: Chapter 14 Pre-Test

Monday 4/20

Today was a MATHia day in class.

We'll be taking our Chapter 13 test tomorrow. Be sure to study tonight, organize all your materials and bring them with you, and arrive fully prepared to demonstrate your expertise tomorrow!

Homework: MATHia practice

Friday 4/17

We took Common Assessment #5 in class today and the results as a class were quite good. Thank you for all your hard work getting prepared for the test!

And now for some rest and relaxation. Enjoy your weekend!

Here is this week's extra credit:

Week 27 Extra Credit

The total use of electricity in the United States in 1902 was about 6.03 billion kilowatt-hours. Electricity use was about 595 times greater by 2000.

Without using a calculator, determine the total use of electricity in 2000.*

Write your answer in scientific notation.

Thursday 4/16

Today we reviewed for tomorrow's Common Assessment using this power rule class review activity. Need more practice? There's a bunch of extra problems on there for you to do. Please feel free to check your answers with peers in The Community if needed.

Tomorrow's test will cover all the concepts and skills acquired in Chapters 11, 12, and 13. Be sure to arrive fully prepared to demonstrate that you've mastered all these concepts!

Homework: Common Assessment Review and Worksheet "Why Do Cows Wear Bells" p. 19 and 20.

Wednesday 4/15

We discussed operations with scientific notation today with Lesson 13.5. You should now be able to add, subtract, multiple, and divide two numbers written in scientific notation.

A study guide for Common Assessment #5 has been uploaded to the Document Locker. We'll be taking CA #5 on Friday. Happy studying!

Tuesday 4/14

Today we learned how to use scientific notation to represent both really large and really small numbers inLesson 13.4.

Here's a great visualization of the kinds of things for which we'd need scientific notation to measure or count. Notice the base 10 power in the lower right corner?

Homework: Finish Problems 2 & 3 on textbook pages 714-718

Monday 4/13

We worked in MATHia today.

I also shared that we'll be taking our final Common Assessment of the year this Friday.

Homework: MATHia practice.

Friday 4/10

We finished out the week today with an opportunity to make more progress in MATHia.

Have a great weekend, everyone!

Thursday 4/08

Today we learned about negative and zero exponents in Lesson 13.3.

This now completes all six of the exponent rules that you need to memorize and be able to use to solve and simplify a variety of problems. You'll find all six in the graphic on this post. Study, study, study; practice, practice, practice!

• Product rule
• Quotient rule
• Power to a power rule
• Negative exponent rule
• One rule
• Zero rule

Homework: Textbook page 705-710 All.

Wednesday 4/07

Today we investigated multiplying and dividing powers in Lesson 13.2.

Homework: Textbook pages 696-699. 

Tuesday 4/07

Today we learned "all about the base " or positive powers and exponents in Lesson 13.1.

Homework:  Talk The Talk  and 13.2 give it a try and get credit for your effort.

Monday 4/06

We worked on finishing our
Chapters 11 and 12 Test and MAthia. On to Chapter 13 Exponents.

Homework: Chapter13 Pre-Test

Friday 4/03

We took our Chapters 11 & 12 test today. Great job everyone!

Don't forget, MATHia is due Monday.

Homework:)


Systems of Equations are now complete. On to exponent rules next week!

Here is this week's extra credit:

Week 27 Extra Credit

Mike Trout is gearing up for the 2015 baseball season. He's looking to carefully balance his nutrition regimen to be in peak physical condition for Opening Day. He finds that there are 5 grams of sugar in each of his sports drinks and 3 grams of sugar in each of his protein bars. For his plan, the total grams of sugar from snacks should be 25 and his intake of both of these snacks should not exceed 7

1. Write an equation in standard form to represent the total      grams    of fat he should consume each day

. 

2. Write an equation in standard form to represent the total  number of snacks he can consume each day.

3. Define your variables for this problem situation.

4. Which algebraic method did you use to solve this system?      Why?

5. How many sports drinks can Mike Trout consume each day?

 

6. How many protein bars can Mike Trout consume each day? 

Thursday 4/02

Today we continued our study in preparation for Friday's Test.

Great job everyone!

Homework: Chapter 12.2 Problem 2 Page 667 All.

Wednesday 4/01

Today we prepped for Thursday's test by using the best method to solve systems of linear equations together in teams.

Be sure to study tonight to arrive fully prepared tomorrow. Your Chapter 11 & 12 class work, homework, and chapter summaries will be the best tools.

Remember, you can also use your class work and homework on Thursday's test. So if you've been working really hard in class and at home, that should help a lot. Come prepared.

Tuesday 3/31

We investigated solving systems of equations using the best method available today withLesson 12.3.

We'll spend one more day wrapping up our look at linear systems, and then take a test on Thursday on Chapters