Part+Part+Whole,+Whole+Unknown

=**Part Part Whole, Whole Unknown**=

Problem:
Connie has 5 red marbles and 8 blue marbles. How many marbles does she have?

//**Direct Modeling**//
5+8=? Answer: 5+8=13 Count 5 red blocks and 8 blue blocks. Count all to get the answer = 13. Strategy = Join All
 * ooooo oooooooo** all together = **ooooooooooooo**

Video, "PPWWU Direct Model" attached. media type="file" key="PPWWU Direct Model.mov" width="300" height="300"

//Counting//
(5) _ _ _ _ _ _ _ _ (5) __6__, __7__, __8__, __9__, __10__, __11__, __12__. __13__ Start with 5 in our head, then count up with fingers until the fingers show 8. Our counting voice tells us the answer is 13. Strategy: Count on from first. Video, "PPWWU Count On From First" attached. media type="file" key="PPWWU Count On From First.mov" width="300" height="300" (8) _ _ _ _ _ _ _ _ (8) __9__, __10__, __11__, __12__. __13__ Start with 8 in our head, then count up with fingers until the fingers show 5. Our counting voice tells us the answer is 13. Strategy: Count on from largest. Video, "PPWWU Count on From Largest" attached. media type="file" key="PPWWU Count On From Largest.mov" width="300" height="300"

//**Number Facts**//
I don't know what 5 + 8 is, so I think about what I do know. I know that 5 + 5 = 10, and I know that 8 = 5 + 3 So I'll take 5 + 5 = 10, and then add the 3 left over 10 + 3 = 13.

Video, "PPWWU Facts" attached. media type="file" key="PPWWU Facts.mov" width="300" height="300"

**Ten Frame Facts**
8 + 5 = ? 8 on one ten frame, 5 on another (we drew them). When we put them together we can take two from the 5 frame which gives us an even 10, with 3 left over, making 13 total.

Video, "PPWWU Ten Frames" attached. media type="file" key="PPWWU Ten Frames.mov" width="300" height="300"