Monday, October 20, 2014

Doubles and Near Doubles



        What are doubles facts?? A double is an addition fact where both numbers being added together are the same, like 2+2 or 5+5. Memorizing your doubles facts can help you to add other number sentences more easily. If you know that 3+3=6,  when you see 3+4, you can see that it should be just one more, because four is just one more than 3, so you can take the sum of the double (3+3=6) and add 1 more (3+4=7).  We have introduced the concepts of doubles and near-doubles to our students and we will be continuing to practice addition using doubles in the next few weeks. Here are some resources to help your child practice their doubles.
        We have been singing the doubles rap to help us memorize our doubles facts:

0+0=0: Oh!
1+1=2: Ooh!
2+2=4: More!
3+3=6: Kicks!
4+4=8: Great!
5+5=10: Again!
6+6=12: That’s swell!
7+7=14: Let’s lean!
8+8=16: You’re a queen!
9+9=18: Jelly bean!
10+10=20: That’s plenty!

     Here is a powerpoint presentation showing the doubles, and how they can help us when adding: Using Doubles.
     Here are some flashcards to help your child practice their doubles:

Here are some online games to help your child practice their doubles:
Monkey Drive – Racing game to practice your doubles
Alien Attack – Solve the doubles before they fall to Earth
Doubles Mad Math Minute – timed game
Top of the Class Game – Move the bee up to the top by making doubles

Here are some video Resources
Doubles Songs – I Can Add Doubles, 1-5 version 
Doubles Songs – I can Add Doubles, 6-10 Version
Brainpop Jr Doubles Movie – this is only accessible if you have a brainpop subscription.



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