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Jacques Chaumette

Jacques Chaumette oprettede et opslag 1. marts 2019 15:40
Alternative method for subtraction regrouping

In elementary school (Germany) I also learned another method (besides the one here: https://www.khanacademy.org/math/arithmetic/arith-review-add-subtract/arith-review-subtract-within-100/v/introduc...
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Jacques Chaumette kommenterede 6. februar 2019 21:48
I think you should be awarded a low amount for explainatory material, e.g. articles and videos. The problem sets and unit tests should be the real source of energy points. After all, teachers in sc...
Jacques Chaumette kommenterede 6. februar 2019 21:14
Good idea, however a bookmarking system could also help.