abacus Archives - Tree Valley Academy Free Educational Printables for Kids Wed, 15 Nov 2017 15:42:04 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.4 https://www.treevalleyacademy.com/wp-content/uploads/Tree-Valley-Academy-Site-Icon-150x150.png abacus Archives - Tree Valley Academy 32 32 Mental Math – Learning To Be A Human Calculator https://www.treevalleyacademy.com/mental-math-learning-to-be-a-human-calculator/ https://www.treevalleyacademy.com/mental-math-learning-to-be-a-human-calculator/#comments Tue, 22 Mar 2016 18:54:00 +0000 http://treevalleyacademy.com/?p=28 I honestly don’t know how I stumbled across this type of mental math.  Then I watched YouTube video’s of kids calculating in their head faster than you could find the answer using a calculator and I was intrigued. It’s basically using an abacus to do calculations and then gradually learning to visualize the abacus in …

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