Stop Memorizing Methods: Understanding Place Value And Addition скачать в хорошем качестве

Stop Memorizing Methods: Understanding Place Value And Addition

In this lesson you will see that numbers are not just symbols on a page. We start with a funny story about hunters and deer to understand why humans invented ones tens and hundreds in the first place. You will see • why thirteen is not one plus three • how tens hunters and ones hunters help us count any number • how grouping makes counting faster • what carrying in addition really means Then we use blocks and tigers to show that adding is always just putting things together and counting. You will also see that you can add in more than one way from right to left or from left to right as long as you understand what you are doing. By the end of this video you should feel more confident with place value and with adding bigger numbers with carry. 00:00 Counting and the mystery of thirteen 00:40 Hunters and deer story for place value 02:38 Tens hunter and hundreds hunter 03:06 From story to number blocks 04:15 What is adding really 05:05 Tigers and blocks putting together and counting 06:04 Why we group things in tens 07:29 Adding bigger numbers with blocks 09:44 What carrying really means 10:29 Grouping tens into hundreds 13:11 Is there only one correct method 14:03 Can we add from another side 16:03 A rough notebook means you are thinking