According to Common Core, this is incorrect. It should be:
3+3+3+3+3=15
Why "5+5+5=15" is wrong under the Common Core - Business Insider
They say the second one is correct because it's better to think of it as "5 groups of 3," rather than "3 groups of 5." This approach makes it easier when the student moves on to calculus with multiple variables.
I read somewhere Common Core math is designed to get students to think of math as more "fluid," and that will help them think more abstractly and foster innovation.
Is this all a bunch of malarkey, or do the Common Core people have good intentions (e.g., improve testing on STEM subjects) gone wrong?
Lightin' fuses is for blowin' stuff togethah.
Project HERE.
Project HERE.
"If you think you're the smartest person in the room, then you're probably in the wrong room."
Lightin' fuses is for blowin' stuff togethah.
Lightin' fuses is for blowin' stuff togethah.
A scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die and a new generation grows up that is familiar with it. Max Planck
What if they're not stars? What if they are holes poked in the top of a container so we can breath?
What if they're not stars? What if they are holes poked in the top of a container so we can breath?
What if they're not stars? What if they are holes poked in the top of a container so we can breath?
What if they're not stars? What if they are holes poked in the top of a container so we can breath?
Meow!
Meow!
Lightin' fuses is for blowin' stuff togethah.
Lightin' fuses is for blowin' stuff togethah.
Project HERE.
What if they're not stars? What if they are holes poked in the top of a container so we can breath?
What if they're not stars? What if they are holes poked in the top of a container so we can breath?
What if they're not stars? What if they are holes poked in the top of a container so we can breath?
What if they're not stars? What if they are holes poked in the top of a container so we can breath?
"If you think you're the smartest person in the room, then you're probably in the wrong room."
Lightin' fuses is for blowin' stuff togethah.