Here is an excellent resource to use at home if you ever have any questions about a lesson that was taught in class, homework or just the common core math curriculum. This is also great for the upper grades as well.
Then on the right side of the screen select ENY Math Help
That will bring you to a page where you can select first grade.
Sums and Differences to 10
New or Recently Introduced Terms:
Count on - students count up from the addend to the total
Track - students use different objects to track the count from one addend to the total
Expression - example - 2+1 or 5+5
Addend - one of the numbers being added
Doubles - example 3+3
Doubles plus one - example 3+4 or 4+5
Terms and Symbols:
+, -, =
At home, practice math facts to 10. Both addition and subtraction.
Introduction to place value through addition and subtraction within 20.