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Make it Count Education Assistant and AEIO Professional Learning. "A Practical Introduction To Develop The Understandings Students Need To Achieve Expected Mathematical Outcomes". Presenters: Tracey Armstrong Make It Count Swan Valley Cluster Coordinator
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Make it Count Education Assistant and AEIO Professional Learning "A Practical Introduction To Develop The Understandings Students Need To Achieve Expected Mathematical Outcomes" Presenters: Tracey Armstrong Make It Count Swan Valley Cluster Coordinator Getting it Right Numeracy Swan View Primary Sharon Lee Kindergarten Teacher Swan View Primary School
Focus • The mathematics children need to know to help develop a deep number sense with a focus on using mathematical language associated with subitising and partitioning.
By the end of the session you will… • Understand the meaning of subitising and partitioning and how it helps build students understanding • Use a variety of activities with students
Subitising is ……… • The ability to look at collections and use numbers to say “how many “ without counting. (seeing at a glance)
To learn to subitise students will need lots of experiences where they 'hear' the number word attached to particular collections.
More or Less Game • Students use comparative language. • Students hear the number word to match the collection. • Students then connect written symbol to the quantity.
How many can you see • Use the more cards as flash cards • Expose a card to your group for only about 1 second, and then hide it. • First with the correct number takes the card after they explain how they knew how many. • What did you need to think about to say how many? • What games could you play with these cards? • What focus questions could you ask?
Importance of Subitising • The students understand the purpose of numbers is to show "how many". • Students develop a visual image of numbers - eg. What does 4 look like? • Important building blocks for mental calculations. Three
Hide the Jellybeans Game • Record what you see using pictures and tell your partner. • Record what you see usingwordsand tell your partner. • Record what you see using numbers and symbols and tell your partner.
Partitioning What does that mean?
Partitioning • Partitioning is breaking up a collection in a number of different ways without changing how many are in the total set.
Ten Frame Game • Students should be encouraged to break up collections of ten items. Ten frames help students to begin to see the importance of 'tens' in our number system.
Number Families • Break a Number • Think boards
Building Relationships Between Numbers. • Students need to learn that numbers are related to each other and belong to “number families”. • They should be encouraged to write a number sentence to represent each partition. • The = sign means that the numbers on one side of the sign are equal to the combination of numbers on the other side. • Many young students develop the misconception that the = sign means “the answer is “ and believe they can only write the number sentence like 3 + 2 = 5.
Number Families Number Family for 5 0 + 5 = 5 5 = 0 + 5 5 – 0 = 5 1 + 4 = 5 5 = 1 + 4 5 – 1 = 4 2 + 3 = 5 5 = 2 + 3 5 – 2 = 3 3 + 2 = 5 5 = 3 + 2 5 – 3 = 2 4 + 1 = 5 5 = 4 + 1 5 – 4 = 1 5 + 0 = 5 5 = 5 + 0 5 – 5 = 0
Partitioning At A Higher Level • Having the confidence to partition larger numbers is a critical building block for later mathematics learning as it helps students to: • Develop an understanding of place value. • Use partitioning strategies for calculations.