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Tuesday, January 31, 2012

Video Walkthrough: Four Methods of Multiplying Fractions


This lesson features:
  • Different methods for solving 1/2 x 2/3
  • Traditional Method
  • Array Method
  • Pictorial Method
  • Grid Method

Monday, January 30, 2012

Video Walkthrough: Multiplying Fractions by Whole Numbers (Pizza by the Fraction...Mama Mia!)

This video walkthrough features:
  • Multiplying fractions by whole numbers
  • Multi-step problem solving
  • Problem solving strategies
  • Dividing decimals by whole numbers

Thursday, January 26, 2012

Video Walkthrough: The Pizza Topping Fraction Problem

This video features:
  • multi-step word problem involving fractions
  • identifying fractions of a set
  • problem solving strategies
The people who visit Mr. Marinich's Edu-Blog got together to have a pizza party. Use the clues below to decide what toppings are on each of their 16 pizzas.
Clues:
1. One fourth of the pizzas are just plain cheese.
2. One-third of the remaining pizzas have only pepperoni topping their pie.
3. One-fourth of the remaining pizzas have sausage and mushrooms.
4. Half of the remaining pizzas have ham and pineapple.
5. One-third of the remaining pizzas have mushrooms and black olives.
6. Half of the remaining pizzas have hamburger.
7. Half of the final pizza has anchovies and mushrooms, while the remaining half has bacon and green peppers.

Tuesday, January 24, 2012

Video Walkthrough: More Adding and Subtracting Fractions with Unlike Denominators

This video features:
  • More examples of adding and subtracting fractions with unlike denominators
  • LCM method
  • Pictorial method
  • Array Method
  •  
     

Wednesday, January 18, 2012

Video Walkthrough: Fractions on a Number Line

In today's video walkthrough you will see:
  • Fractions between zero and one whole set on a number line
  • A number line extended from zero through two which includes fractions and mixed numbers
  • A visual comparison of fractions and their relationship with whole and mixed numbers

Tuesday, January 17, 2012

Subtracting Fractions with Unlike Denominators (Pictorial/Array vs. Traditional Method)

Video Walkthrough: Subtracting Fractions with Unlike denominators Part 1 features:
  • Both pictorial and array solutions
  • 1/2 - 1/4
  • simplification of the difference 2/8=1/4

Video Walkthrough: Subtracting Fractions with Unlike denominators Part 2 features:
  • Traditional Method of solving 1/2 - 1/4
  • Multiples
  • Using LCM (Least Common Multiple) to find a common denominator
  • Why 1/4 = 2/8
New York State Core Curriculum 2011

Monday, January 16, 2012

Video Walkthrough: Adding and Subtracting Fractions with Unlike Denominators ( Pictorial Method vs. Traditional LCM Method)

This video features:
  • Adding two fractions with unlike denominators
  • Two pictorial solutions
  • 1/2 + 1/4







This video takes a look at:
  • The traditional Lowest Common Multiple (LCM) method of adding fractions with unlike denominators.
  • 1/2  + 1/4 is solved.

Wednesday, January 11, 2012

Video Walkthrough: Adding and Subtracting Fractions With Like Denominators

This lesson features:
  • adding and subtracting fractions with like denominators
  • 1/3 +2/3, 7/9 -4/9, and 12/15+5/15
  • mathematical solution
  • 2 visual solutions for each
Adding and subtracting fractions 2011 New York State Core Curriculum

Tuesday, January 10, 2012

Video Walkthrough: 1/2 as a benchmark fraction

This lesson features:
  • 1/2 as a benchmark fraction
  • fractions equivalent to 1/2
  • a comparison of 3/8, 28/46, 17/34, and 4/9 to 1/2

Video Walkthrough: Fractions as Part of a set or group - part 2





Today's lesson features
  • fractions of a set where the denominator is different from the number of items in the set.
  • Examples :  what is 1/3 of 9, 1/7 of 14, and 3/4 of 12.
Taken from New York State 2011 Core Curriculum

Friday, January 6, 2012

Video Walkthrough: Fractions as part of a set or group

In this video you will see:
  • fractions as part of a set
  • review of numerator and denominator
  • example of fraction of a set/group
  • identifying specific fractions of a set

Tuesday, January 3, 2012

Video Walkthrough: Fractions Part 1




Today's video walkthrough features an introduction to fractions.  In the lesson, you will see:
  • fractions, numerator, and demominator defined.
  • examples of above terms.
  • when numerator and demominator are the same, the fraction equals 1 whole.
  • first example of equivalent fractions.
Please leave comments or lesson suggestions in the comment section of the latest post.
Thanks for watching!

Video Walkthrough: Function Machines Part 3

This video walkthrough guides you through more function machines, taken from our latest assignment.  For a more in-depth look at function machines view our previous function machine post.  Pause the video, work out the solutions, then play the video for the solution. 

Thursday, December 22, 2011

Video Walkthrough: Holiday Problem Solving

I had a request to post these holiday problems.  Here they are...enjoy.
Try to solve them, and then watch the video walkthrough for the solution. 

Mrs. Jones has a hidden talent. It's yodeling! She loves to yodel when students aren't around, filling the halls of her school with the sound of music. That's right, the halls are alive with the sound of music. Anyhow, she can say, "Yodel-ay-he-hoo!" 63 times per minute. How many times can she say, "Yodel-ay-he-hoo!" in her 39 minute break?

Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner, and Blitzen proudly and majestically pull this famous guy's sleigh. They are all led by the most famous reindeer of all...Rudoph! My question for you is, how many hovering hooves are their all together?

Rudolph is knitting antler warmers for the rest of the reindeer squad. He is trying to calculate how many antler points there are. If half of the team have 8 points each and half have six points each, how many antler points are there in total?

On the day after Christmas vacation, the town of Santaville received a record 13 feet of snow. That's higher than most of Santaville school!

1)How many inches of snow is that?

2)If we received 6 inches of snow per hour, how long did it take for all 13 feet of snow to accumulate?

The jolly old elf himself gained 39 pounds just from eating milk and cookies on his travels around the globe. If there are 16 ounces per pound, how much weight in ounces did he gain?

Santa and his favorite and most jolly elves Mr. Smith and Mr. Marinich had a sled race down Holiday Mountain. Santa finished the course in 33.7 seconds. Mr. Smith finished in 31.09 seconds. Mr. Marinich finished in 31.9 seconds (What can I say, I stopped for some hot chocolate!). Who finished in first, second, and third places? How much faster was Mr. Smith than Santa?



I wish everyone a wonderful holiday season.  Have fun, stay safe, and be in good health. 
Sincerely,
Mr. Marinich ;*)

Wednesday, December 21, 2011

Video Walkthrough: Order of Operations with Parentheses, Brackets, and Braces Part 2 with Breadfast Cereal Analogy

Today's video walkthrough takes another look at order of operations with parenetheses, brackets, and braces while introducing the breakfast cereal analogy.   It features:
  • a more complex problem with several operations within the parentheses, brackets, and braces.
  • the breakfast cereal analogy. 
* NOTE: Please check out our new site www.worksheetsandwalkthroughs.com to print out the worksheet for this video and others. You may also create your own worksheets with our worksheet designer.
Thanks,
Mr.Marinich
Feel free to email suggestions for lessons to worksheetsandwalkthroughs@gmail.com
Core Curriculum
Enjoy!
Thanks for visiting Mr. Marinich's Edu-Blog ;*)

Tuesday, December 20, 2011

Video Walkthrough: Function Machines Parts 1 and 2

In this video, you will see:
  • The first two Function Machine Problems
  • rule and reverse rule
*note: see following video for the last two problems and a brief correction to this video ;*)
In this Video you will see:
  • 2 function machines from part 1.
  • continuation of rule and reverse rule.

Thursday, December 15, 2011

Video Walkthrough: Exponents and Powers of 10

In today's video, we take a look at exponents and powers of 10. 

In my next post, expect to see:

*multiplying a given number by a power of 10.
*dividing a given number by a power of 10.

If you have a request for a lesson, let me know in the comment section of the most recent post.  Thank you for visiting.
Enjoy!

Monday, December 12, 2011

Thursday, December 8, 2011

Video Walkthrough of the 4 Ways to Multiply Multi-digit Numbers

Here is a video walkthrough of the four multiplication methods we used a few weeks ago. 
You will see the following methods:
  • lattice
  • distributive
  • traditional algorithm
  • estimation
I hope this helps to refresh your memories....enjoy!