Wednesday, December 9, 2015
Monday, December 7, 2015
Dividing by Fractions, An Animation, Partition Division
click here
Description:
I added captions!
The video is an animated explanation of dividing by fractions. This article was the inspiration: Making Sense of Partitive and Quotitive Division: A Snapshot of Teachers’ Pedagogical Content Knowledge by Anne Roche, Australian Catholic University, and Doug Clarke, Australian Catholic University, . Teachers and students understand 8 / 2. But 8 / (.5) can be more difficult.
The process of dividing 8 by 2 is partition division. Dividing 8 by 0.5 is best done with partition division.
Tags : math, fractions, third grade, GED, stevenlevymath
Description:
I added captions!
The video is an animated explanation of dividing by fractions. This article was the inspiration: Making Sense of Partitive and Quotitive Division: A Snapshot of Teachers’ Pedagogical Content Knowledge by Anne Roche, Australian Catholic University, and Doug Clarke, Australian Catholic University, . Teachers and students understand 8 / 2. But 8 / (.5) can be more difficult.
The process of dividing 8 by 2 is partition division. Dividing 8 by 0.5 is best done with partition division.
Tags : math, fractions, third grade, GED, stevenlevymath
Tuesday, December 1, 2015
Monday, November 30, 2015
Audacity Workflow
Audacity Workflow
Files to import
The main formats are AIFF, AU, FLAC, MP2, MP3, OGG Vorbis and WAV. On Mac OS X, Audacity as shipped can also import Apple formats like M4A (AAC) and MOV.
- Narrate in Adobe Prem. Elements.
- If importing use AIF files from Adobe Prem. Elem. skip to 8.
- Plug in microphone. Start Audacity.
- Set mic to AT2020USB
- Use "windows direct sound"
- 0.0 dB is highest level for digital audio.
- Actually -2.0 dB would be best.
- First "Noise Removal". Start recording just the ambient noise.
- Apply "normalization."
- "Equalization", AM Radio profile, use flatten
- "Compression". Make softer louder. and Louder softer.
- "Normalize again".
- Reduce peaks with "amplify"
- Kill breath with "silence"
- Adjust gain of loud parts with "Amplify"
- Save as "wav" file
Reference this video click here
Files to import
The main formats are AIFF, AU, FLAC, MP2, MP3, OGG Vorbis and WAV. On Mac OS X, Audacity as shipped can also import Apple formats like M4A (AAC) and MOV.
Thursday, November 26, 2015
Wednesday, November 25, 2015
Stevenlevymath: Funny Skit About Fractions
The beginning of a funny skit about fractions auditioning for a movie. Students could have fun writing the rest of it.
Click Here
Friday, November 13, 2015
Thursday, November 12, 2015
Lesson Plan For Grade 3, Quotition Division Research
Understanding quotition division is a prerequisite to making progress in problem solving and algebra. Students who do not have an intuitive feel for quotition must rely on processes. When they get to word problems, they ask "how do I set up the problem"? As students age their memory for unrelated processes gets weaker.
This is a bibliography for "Lesson Plan For Grade 3, Quotition Division"
Making Sense of Partitive and Quotitive Division
about 25% of teachers could make sense of 8 / (1/2) or 8/0.5.
IGPME - The International Group for the Psychology of Mathematics Education - Home
This is a bibliography for "Lesson Plan For Grade 3, Quotition Division"
Making Sense of Partitive and Quotitive Division
about 25% of teachers could make sense of 8 / (1/2) or 8/0.5.
IGPME - The International Group for the Psychology of Mathematics Education - Home
Sorry, removed page.
Had to remove page for some reason. Leave a comment if you are looking for something specific.
Steven Levy
Steven Levy
Wednesday, November 11, 2015
Stevenlevymath Presents Division
===============
Here's the script:
===============
tags: math, division, arithmetic, stevenlevymath
Steven Levy Math Presents
What is division?
Reference
Wikipedia and Mathematics Stack Exchange
Division can written as: a/b = c.
a is the dividend.
b is the divisor.
c is the quotient.
Division can be expressed as:
1) Partition division
2) Quotition division
Partition Division
6 / 2 = ?
Divide 6 into 2 groups.
How many are in each group?
(Get the answer! Show 6 tiles. Make 2 equal groups. Count how many there are in a group.)
6/2 = 3
Quotition Division
6/2 = ?
Divide 6 into groups of 2.
How many groups are there?
(Get the answer! Show 6 tiles. Make groups of 2 tiles. Count how many groups.)
6/2 = 3
My Sites
Video: stevenlevymath.com
Blog: stevenlevymath.info
The End
http://math.stackexchange.com/questions/638716/quotition-versus-partition
Monday, November 9, 2015
The Money of Climate Change Denial
The Money of Climate Change Denial
According to Wikipedia under the heading "Climate Change Denial" between 2002 and 2010 $120 million was donated to "Donors Trust and Donors Capital Fund" that was distributed to the denial effort.
120 / 8 = $15 million per year.
According to Wikipedia under the heading "Climate Change Denial" between 2002 and 2010 $120 million was donated to "Donors Trust and Donors Capital Fund" that was distributed to the denial effort.
120 / 8 = $15 million per year.
Math in the News: Marco Rubio’s tax-cut plan
Math in the News: Marco Rubio’s tax-cut plan
From Nov. 8 Huffington Post:
From Nov. 8 Huffington Post:
- Would reduce federal revenue by 12 Trillion Dollars over the next ten years.
- Under current policies the federal tax revenue would be 42 Trillion Dollars.
Marco Rubio's plan would result in a 12 / 42 = 29% or about 30% decrease in tax revenue.
Sunday, November 8, 2015
Math in the News
Huffington Post: "Women make 74 cents to a man's dollar in the U.S., according to a report out this week from PayScale. "
Graphic Illustrations for the UN Livestock's Long Shadow Report
stevenlevymath presents: Video Illustrations for the UN Livestock's Long Shadow Report. The videos are meant as a starting point in understanding the chapter.
http://www.fao.org/docrep/010/a0701e/a0701e00.HTM
Food and Agriculture Organization of the United Nations
http://www.fao.org/home/en/
Videos for:
=========================================
Production Notes:
Dec.24, 2015: Using Audacity I "fixed" the sound. Here are the steps: First "Noise Removal".
Apply "normalization."
"Equalization", AM Radio profile, use flatten
"Compression". Make softer louder. and Louder softer.
"Normalize again".
=====================================
http://www.fao.org/docrep/010/a0701e/a0701e00.HTM
Food and Agriculture Organization of the United Nations
http://www.fao.org/home/en/
Videos for:
=========================================
Title: stevenlevymath: UN "Livestock's Long Shadow", Executive Summary Illustrations
Description: Easy to understand pie charts, animated drawing
Tags: math, agriculture, climate change, livestock, methane, UN
Content Area : Mathematics | Subject : Grade 6 | Category : Ratios & Proportional Relationships | Skill : RP.6.3.c
=========================================Description: Easy to understand pie charts, animated drawing
Tags: math, agriculture, climate change, livestock, methane, UN
Content Area : Mathematics | Subject : Grade 6 | Category : Ratios & Proportional Relationships | Skill : RP.6.3.c
Production Notes:
Dec.24, 2015: Using Audacity I "fixed" the sound. Here are the steps: First "Noise Removal".
Apply "normalization."
"Equalization", AM Radio profile, use flatten
"Compression". Make softer louder. and Louder softer.
"Normalize again".
=====================================
Tuesday, August 11, 2015
Monday, August 10, 2015
Thursday, April 23, 2015
Thursday, April 9, 2015
Subscribe to:
Posts (Atom)
Featured Post
-
Mega Cities Exhibit at Boston Museum of Fine Arts stevenlevymath,art,cities
-
Facebook Pages stevenlevymath: https://www.facebook.com/stevenlevymath2 Marblehead Democrats: https://www.facebook.com/MarbleheadDe...
-
Interrelated Organizations that Counter the Koch Network ( Reference Page ) NOTE: this is not a complete list, just groups we know about....