Videos
Little Einsteins
Added Oct 07, 2016 •
Music Class
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2:36 Horizontal Subtraction Made Efficient and Understandable
In this example, the standard horizontal algorithm is turned into a number line giving students a method of solving subtraction without regrouping nonsense. Students focus on the difference between the two numbers and not isolating single digits with regrouping.
Uploaded Sep 19, 2016 -
00:23 28 + ? = 100 or 100 - 28 = ?
Students use a centimeter tape strip for a number line and standard size centimeter counting blocks to understand the difference between 2 numbers.
Uploaded Oct 07, 2016 -
1:43 Subtraction Strategies
This video shows a major component of Common Core. Students need to make sense of what they're doing and avoid routine math steps that cause mathematical confusion.
Uploaded Sep 15, 2016 -
3:13 Multiplication 9
This video shows how students can learn their 9 multiplication "groups" with understanding and depth.
Uploaded Sep 19, 2016