Strategies for basic addition and subtraction facts

In this video I show several strategies for learning the basic addition and subtraction facts:
  • finding all the possible sums for a certain number; e.g. for 6, these would be 0 + 6, 1 + 5, 2 + 4, and 3 + 3;
  • writing out all the fact families where the sum is a certain number;
  • the 9 "trick"; 9 + 7 is the same as 10 + 6 (9 wants so badly to be 10 so that it "steals" one from 7);
  • doubles and the accompanying addition facts;
  • number rainbows and how to use them to practice subtraction;
  • a structured drill for addition facts.
Enjoy!



Strategies for Addition and Subtraction Facts - Video

Comments

Unknown said…
Wish I was confident enough to do video blogging, but not yet. Good job on yours!

I love number lines as an initial math tool. My kids both learned addition/subtraction at age 3 with them.
http://www.discreteideas.com/2009/08/making-more-math-geeks/
10:18 AM, September 16, 2009
SmartPumpkin'sMom said…
Thank you so much for the wonderful video! It was very helpful. :)))
10:37 AM, September 16, 2009
Lindsey said…
Very nice! I'm using your math Mammoth Light Blue with my first grader. He loves when we notices a pattern on the page! :D Thank you for your ideas, and your hard work to provide the text at such a reasonable rate.
12:33 PM, September 18, 2009
Sabyasachi samal said…
Mam i am a mba student, i simply get the opportunity to go through your blog,mam i am very much scared about the multiplication of long numbers and with the decimal points, so i need your help please help me, how to prepare for aptitude so that my fear will get eliminated.
3:29 AM, September 24, 2009
Maria Miller said…
You might want to check out How to multiply decimals by decimals - lesson from HomeschoolMath.net.

You just multiply the numbers as if there were no decimal points. Lastly, you put the decimal point to the answer. The lesson spells out the rules somewhere in the middle.
12:17 PM, October 16, 2009
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