The commutative Law of Addition using aggregation
In this lesson, we will learn about the commutative law of addition using aggregation. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Unit Overview: Addition and Subtraction
Lessons:
15 lessons
The commutative Law of Addition using augmentation
In this lesson, we will learn about the commutative law of addition using augmentation. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Measures Contexts to Show the Commutative Law of Addition
In this lesson, we will look at the commutative law of addition in measuring contexts. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Embedding Understanding of Equivalent Expressions
In this lesson, we will embed our understanding of equivalent expressions. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Ten can be partitioned into pairs of numbers that sum to ten
In this lesson, we will learn about how ten can be partitioned into pairs of numbers that sum to ten. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Reasoning with number bonds
In this lesson, we will reason about expressions using number bonds to 10. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Numbers that Sum to 10
In this lesson, we will use knowledge of pairs of numbers that sum to 10. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Adding one
In this lesson, we will learn that adding one gives one more. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Subtracting one
In this lesson, we will learn that subtracting one gives one less. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Consecutive numbers
In this lesson, we will learn that consecutive numbers have a difference of one. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Adding two
In this lesson, we will add two to odd numbers and to even numbers. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Subtracting two
In this lesson, we will subtract two from odd numbers and from even numbers. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Adding and subtracting with 5 and 3 and with 6 and 3
In this lesson, we will learn that addition and subtraction facts for the pairs 5 and 3, and 6 and 3, can be related to known facts and strategies. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Adding or subtracting Zero
In this lesson, we will learn that, when adding or subtracting zero to a number, the number remains unchanged. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Subtracting a number from itself
In this lesson, we will learn that subtracting a number from itself gives a difference of zero. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Units in Maths
- Numbers to 10
- Addition and subtraction within 10
- Shape and patterns
- Numbers to 20
- Addition and subtraction within 20
- Time
- Exploring calculation strategies within 20
- Numbers to 50
- Addition and subtraction within 20 (comparison)
- Fractions
- Measures (1): Length and mass
- Numbers 50 to 100 and beyond
- Addition and subtraction (applying strategies)
- Money
- Multiplication and division
- Measures (2): Capacity and volume
- Addition and Subtraction
- Multiplication and money
- Numbers within 100
- Addition and subtraction of 2-digit numbers
- Addition and subtraction word problems
- Measures: Length
- Graphs
- Multiplication and division: 2, 5 and 10
- Time
- Fractions
- Addition and subtraction of 2-digit numbers (regrouping and adjusting)
- Money
- Faces, shapes and patterns; lines and turns
- Numbers within 1000
- Measures: Capacity and volume
- Measures: Mass
- Exploring calculation strategies
- Multiplication and division: 3 and 4
- Multiplication: equal and unequal groups
- The two times table