CCSS.MATH.CONTENT.1.OA.C.6
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
- Plus Plan
Doubles Plus 1 - Game Boards
30 game boards to use when practicing the doubles plus one strategy with single and double-digit numbers.
- Plus Plan
Number Facts Board Games
A collection of board games to reinforce your students' knowledge of addition and subtraction fact strategies.
- Plus Plan
Number Talks Teaching Resource Pack - Grade 1
A collection of number talks teaching resources that support meaningful and highly engaging conversations in the mathematics classroom.