Focus:
Concept of Addition, Addition Vocabulary, Odd & Even Numbers, The Commutative Property More Info
Lesson Focus:
All “Zeroes” Addition facts and Subtraction counterparts More Info
Lesson Focus:
All “Ones” Addition facts and Subtraction counterparts More Info
Lesson Focus:
All “Twos” Addition facts and Subtraction counterparts More Info
Lesson Focus:
1+1, 2+2, 3+3, 4+4, and Subtraction counterparts More Info
Lesson Focus:
1+2, 2+3, 3+4, 4+5, Addition commutative counterparts (2+1, 3+2, 4+3, 5+4), and Subtraction counterparts More Info
Lesson Focus:
5+5, 6+6, 7+7, 8+8, and Subtraction counterparts More Info
Lesson Focus:
5+6, 6+7, 7+8, 8+9, Addition commutative counterparts (6+5, 7+6, 8+7, 9+8), and Subtraction counterparts More Info
Lesson Focus:
3+5, 5+7, 6+8, Addition commutative counterparts (4+2, 5+3, 7+5, 8+6), and Subtraction counterparts. More Info
*NOTE: The Double in the Middle strategy can be used for other facts as well: 1+3 and 3+1, 4+6 and 6+4, 7+9 and 9+7. However; these facts are addressed using alternate strategies in other lessons. Although 2+4 and 4+2 were previously covered in Lesson 3, we have included them in Lesson 8 to demonstrate to students that there is often more than one strategy from which to choose.
Lesson Focus:
9+2, 9+3, 9+4, 9+5, Addition commutative counterparts (2+9, 3+9, 4+9, 5+9), and Subtraction counterparts. More Info
*NOTE: Although 9+2 and 2+9 were previously covered in Lesson 3, we have included them in Lesson 9 to demonstrate to students that there is often more than one strategy from which to choose.
Lesson Focus:
9+6, 9+7, 9+8, 9+9, Addition commutative counterparts (6+9, 7+9, 8+9, 9+9), and Subtraction counterparts. More Info
*NOTE: Although 9+8 and 8+9 were previously covered in Lesson 7, we have included them in Lesson 10 to demonstrate to students that there is often more than one strategy from which to choose.
Lesson Focus:
1+9, 2+8, 3+7, 4+6, Addition commutative counterparts (9+1, 8+2, 7+3, 6+4), and Subtraction counterparts. More Info
*NOTE: Although 1+9 & 9+1 and 2+8 & 8+2 were previously covered in Lessons 2 and 3, we have included them in Lesson 11 to demonstrate to students that there is often more than one strategy from which to choose.
Lesson Focus:
3+6, 7+4, 8+3, 8+4, 8+5, Addition commutative counterparts (6+3, 4+7, 3+8, 4+8, 5+8), and Subtraction counterparts. More Info
Super Simple Subtraction across Zeroes! This quick method deepens understanding of place value.