The Trick of Multiplying 2-Digit Numbers by 11
http://m.youtube.com/watch?v=tOp4g9WiTds
The Trick of Multiplying 2-Digit Numbers By 11, Part 2
http://m.youtube.com/watch?v=WcohelGZQBE
http://m.youtube.com/watch?v=WcohelGZQBE
The Trick of Multiplying 3-Digit Numbers By 11
http://m.youtube.com/watch?v=fRDtfLGXl2U
http://m.youtube.com/watch?v=fRDtfLGXl2U
The Trick of Multiplying 3-Digit Numbers by 11, Part 2
http://m.youtube.com/watch?v=0B9_YmgPCSo
http://m.youtube.com/watch?v=0B9_YmgPCSo
Dividing Fractions by Fractions
https://www.youtube.com/watch?v=0X51JcWduow
https://www.youtube.com/watch?v=0X51JcWduow
Making Fractions from Models and Real-Life Situations
https://www.youtube.com/watch?v=sZb1XWjMdT8
https://www.youtube.com/watch?v=sZb1XWjMdT8
Play Dough Complementary Numbers
https://www.youtube.com/watch?v=vHqHixq_VCY
https://www.youtube.com/watch?v=vHqHixq_VCY
Why is a Negative times a Negative = a Positive?
Our friend, Sal Khan, helps to explain it!
Click here: https://www.khanacademy.org/math/pre-algebra/negatives-absolute-value-pre-alg/mult-div-negatives-pre-alg/v/why-a-negative-times-a-negative-makes-intuitive-sense
Our friend, Sal Khan, helps to explain it!
Click here: https://www.khanacademy.org/math/pre-algebra/negatives-absolute-value-pre-alg/mult-div-negatives-pre-alg/v/why-a-negative-times-a-negative-makes-intuitive-sense
The Trick of Squaring Two-Digit Numbers That End in Five
https://www.youtube.com/watch?v=JtWF8AEw7ls
https://www.youtube.com/watch?v=JtWF8AEw7ls
Understanding Integers By Using Integer Chips or Counters
1st Hour: https://www.youtube.com/watch?v=f5hYBtiHBAs
2nd Hour: https://www.youtube.com/watch?v=6zO1gm0drXk
4th Hour: https://www.youtube.com/watch?v=kv3C34EAv98
5th Hour: https://www.youtube.com/watch?v=r50gAcGfI20
7th Hour: https://www.youtube.com/watch?v=vG-DiRrR3Iw
8th Hour: https://www.youtube.com/watch?v=dt7tClBoD1w
1st Hour: https://www.youtube.com/watch?v=f5hYBtiHBAs
2nd Hour: https://www.youtube.com/watch?v=6zO1gm0drXk
4th Hour: https://www.youtube.com/watch?v=kv3C34EAv98
5th Hour: https://www.youtube.com/watch?v=r50gAcGfI20
7th Hour: https://www.youtube.com/watch?v=vG-DiRrR3Iw
8th Hour: https://www.youtube.com/watch?v=dt7tClBoD1w
ALL ABOARD the CONVERSION TRAIN!
This classic aid in converting measurements or rates is well worth knowing! I learned it in 11th Grade, and I was aggravated that nobody had taught it to me sooner! I hope you appreciate it as much as I do. https://www.youtube.com/watch?v=IgZXYJZKw84&feature
This classic aid in converting measurements or rates is well worth knowing! I learned it in 11th Grade, and I was aggravated that nobody had taught it to me sooner! I hope you appreciate it as much as I do. https://www.youtube.com/watch?v=IgZXYJZKw84&feature
Hexadecimal System
We have spoken about the Decimal System being a base ten system (deci means 1/10 or one-tenth). That is why we move the decimal place one time for each ten that we are either multiplying or dividing by.
I thought this video from Sal Khan improved my understanding of the decimal system! https://www.youtube.com/watch?v=4EJay-6Bioo
We have spoken about the Decimal System being a base ten system (deci means 1/10 or one-tenth). That is why we move the decimal place one time for each ten that we are either multiplying or dividing by.
I thought this video from Sal Khan improved my understanding of the decimal system! https://www.youtube.com/watch?v=4EJay-6Bioo