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, 2016Music Class
Uploaded Oct 07, 2016Students 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, 2016This 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, 2016This video shows how students can learn their 9 multiplication "groups" with understanding and depth.
Uploaded Sep 19, 2016
|