# Math 6 & 8 _January 6 2014!

Happy New Year!

Today we reviewed classroom expectations and routines.

Here is the contract due tomorrow (signed by a parent/guardian): Classroom contract

Also due tomorrow (Tuesday Jan 7) is the winter break packet!

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Anyone figure out my riddle??

# Math 6_ Winter Break

Happy Winter break!

Bored yet?

Here are the last few homework assignments that you may have missed:

Dec 4_ Rates and Ratio HW

Dec_16 Rate_Percent (Dec_16 Rate_Percent problems solving)

Math Face Decimals (Adding subtracting decimals)

Math Face (2nd) (Mixed operations)

Percent Math Face

Blank Math Face

Worksheet 2d

Dec_4 Meaning of Percent

Here is the Winter Break Review Packet:

Winter Break Study Packet

Having troubles? Go to youtube.com to find some good videos!

Riddle (if you come on January 6 with the answer… there may be a prize!)

There are three boxes. One has apples, one has oranges and the other has apples and oranges. The boxes are labeled wrong so that no label is correct. Sue opens just one box, and without looking in the box, takes out one piece of fruit. She looks at the fruit and immediately labels all the boxes correctly. Which box did she open and how did she know?

http://mathriddles.williams.edu/?p=94

# Math 8_November 20

Today we…

* Reviewed equations with fractions as coefficients

* Had an introduction to inequalities!

* Discussed logic as we debated opposites of inequalities

Here was our warm up problem

Then we looked at inequalities!

If you are wanting another explanation…

Another example you ask?? With pleasure…

Which symbols are opposites?

Still feeling a bit cloudy on this? Here is a great website with some explanations.

http://www.mathsisfun.com/algebra/inequality-solving.html

And the home work due tomorrow: Nov 20_Inequalities HW

See you tomorrow!

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If all girls are blonde,

and Emma is a girl,

does it make logical sense that Emma is blonde?

if we know Emma is a blonde, is she necessarily a girl?

# Math 8_November 12

Happy Happy 11-12-13 🙂

Today we…

* Solved algebraic equations with fractions

* Explored algebraic story problems in groups

* Presented solutions in front of the class

Our warm up… bit tricky 🙂

Our class work: Nov_12 Algebra equations CW

Homework Due WEDNESDAY! Nov 12_Undo Fractions HW

A video for extra practice you ask??? Surely!

You’re better than Calvin… you know you are…

# Math 8_ November 4

Today we…

* Solved equations using a balance scale approach!

* Used “Hands-on Equations” to find solutions.

Here was our warm up:

Here are a few problems we solved with steps (inverse operations)

We used a balance scale to help us remember that when we undo something on one side of an equation, we must undo the other side as well….

Here is a link to access some videos and example problems:

No homework today, see ya tomorrow!

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Riddle me this…

The police rounded up Jim, Bud and Sam yesterday, because one of them was suspected of having robbed the local bank. The three suspects made the following statements under intensive questioning.

• Jim: I’m innocent.
• Bud: I’m innocent.
• Sam: Bud is guilty.

If only one of these statements turns out to be true, who robbed the bank?

# Math 6_ November 4

Today we…

* Added, Subtracted, and Multiplied Decimal Numbers!

Our warm up:

Then we divided into groups and worked on the following worksheets:

Nov 4_Intro Multiplying decimals story problems

We also started a conversation about multiplying by powers of 10.

Here are some of our class notes

So we move the decimal place to the right when we multiply. And the number of places we move it is the same as the number of 0’s after 1!

No homework 🙂 See you tomorrow!!

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Riddle me this….

The police rounded up Jim, Bud and Sam yesterday, because one of them was suspected of having robbed the local bank. The three suspects made the following statements under intensive questioning.

• Jim: I’m innocent.
• Bud: I’m innocent.
• Sam: Bud is guilty.

If only one of these statements turns out to be true, who robbed the bank?

# Math 6_ October 21

Today we…

* Represented Division of Mixed numbers with models and equations!

* Practiced describing our mathematical processes by presenting problems on the document camera

Here is our warm up problem and class notes:

Remember from Friday (I didn’t post)

We described the Division Algorithm today

And when we model…

Remember we don’t want to divide our friends! We divide the pizza!

Homework: Challenge problem #2 on the worksheet (Picture below)

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Riddle of the week! (bring an answer to my classroom for candy!)

You are standing outside of a room. The door to the room is closed. Inside the room is a light bulb. Outside of the room there are 3 light switches. One turns on the bulb, the other two are useless. You can turn the switches on and off as many times as you like, but you can only enter the room once to check. You cannot see underneath the door or through a keyhole. The only way to see inside the room is by opening the door.

How can you figure out which switch turns on the light bulb?