math...this link doesn't take you to this particular resource, but I have these addition facts cards and I see they used Legos or some other block combinations to make a hands on learning activity...cool. Math Tubs, First Grade Math Center, Math Centers, Flash Cards, Unifix Cubes, Math Facts, Math Stations, Math Activities, Kindergarten
There is no printable but seems easy enough to make: number sense - might be a great center activity for 1st grade math! Should always have one math center deal with basic facts. This one might need to be parent/para/teacher led until the students get used to how to do it.
IDEA FOR PRACTICE COUNTING PROJECT...assign a number for each child and have them choose and glue corresponding number of objects. Have them write 2-3 numbers to choose answers from. Exchange with a friend and practice counting!