Common Core standard
Activities for HSN.Q.A.1
Real-world activities aligned to this standard.
How old are you?
We usually give our ages in years, but that isn't very precise is it? In this activity students find their age in days, hours and minutes. First students...
Algebra
Number Sense
Grades 4–6
Shrinking Toblerone
New York Times photo - Credit Darren Staples/Reuters They changed it. That is so not fair ... or is it? You can check out a video news story...
Number Sense
Geometry
Grades 5–HS