Building a Solid Foundation of Number Sense...Building a Solid Foundation of Number Sense Sandra...
Transcript of Building a Solid Foundation of Number Sense...Building a Solid Foundation of Number Sense Sandra...
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Agenda
• Big Ideas
• Number Sense Routines
• BUILD – Math Centres
• Number Talks
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• Curious
• Kinesthetic
• Egocentric
• Social
• Spontaneous
• Suitcase full of
experiences
What’s so special about ‘Early
Learners?
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The Learning Environment
Meaningful
Engaging
Curriculum based
Child centered
Connected
Address diversity
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Today’s mathematics classrooms should be ...
• dynamic places where children are involved and engaged in their own learning
• include activities that promote higher level thinking, cooperative problem solving and communication.
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How do we build a ‘Math Community’?
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Building a Math Community
The goal is to facilitate the development of an inclusive classroom
where all students feel safe, valued, and supported in their
learning.
• demonstrate mutual respect
• willingness to take risks
• explore, share and apply strategies
to solve problems
• learn successfully together
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What is Number Sense?
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• is the most important
foundation in the development
of numeracy
• helps children discover the relationships
between the real world and abstractions.
• develops as a result of exploring and
visualizing numbers in a variety of
contexts
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Subitizing numbers is important.
Counting tells how many things are in a set.
Numbers are related to each other.
Number concepts are intimately tied to
the real world.
Addition and Subtraction are related.
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Counting: Five Basic Concepts
1. Stable Order:
2. One to One:
3. Abstraction:
4. Cardinality:
5. Order
Irrelevance:
Words used in counting must be the same
string of words from one count to the next.
Each counting word must be paired with
exactly one object being counted.
Any collection of objects can be counted; the
objects don’t need to be uniform to be counted.
(how much-ness) When a set is counted,
the last counting word said indicates the
total number of objects in the set.
A set can be counted in any order and get
the same result.
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What is REALLY important
in Early Numeracy?
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What Do They Know?
September 24, 2012 – DEC -3:30 -5:00
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Subitizing
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Subitizing Strategies
• Recognizing sets of objects at a glance without counting
• Making the leap from counting to recognizing a group as a whole
• Visualizing quantities – “Take a picture like a camera”
• Subitizing dot cards is like recognizing sight words
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Number Sandwiches • Choose a target number.
• Find two dot cards that can be put together to make
the total of the target number.
• Place the cards together with the dots facing outward
to make the sandwich.
• Take turns picking up a sandwich and showing one
side of the sandwich and ask what is on the other side.
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Rules:
1. Each player chooses a
colour of counters.
2. Players take turns finding
2 sets of dots that total 5.
3. When all the spaces are
covered…the one with the
longest line wins.
Change quantity to 10 for
Terrific 10 Snake.
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That’s Dicey!
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Prizes
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Partitioning
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Partitioning
• breaking a set into parts and
putting it back together again.
• building an understanding
of addition and subtraction
• allows students to explore and
understand ‘why’ fact families exist
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Math Puzzlers
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Shake and Spill
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Two Part Bags
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Story Mats
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Ten Wands
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Go Fish
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Patterning
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Patterning • establish a pattern core, repeat and name it
• predict what comes next and extend both ways
• develop pre-requisite skills for success in algebra –
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Types of patterns to explore…
• Rhythmic
• Colour
• Shape
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• Designs
• Position or arrangement
• Attributes
• Size
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Pattern Fish
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Pattern Strips
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Action Patterns
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Pattern Hands
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“Children need to develop an
understanding of pattern.
By working with pattern children begin to
make sense of their own world.
Once children begin to understand and
trust the notion of pattern, they begin to
see patterns in other areas: number
sentences, reading, art, and music.
In short, the world around them.”
Mary Baratta-Lorton
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TBC 164962
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Quick Images
• Dot cards
• Dominoes
• Pictures with arrays
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Dot Cards help students develop their ability to subitize and visualize numbers.
Standard dice formation 1 -6
Non-standard formations
Different colours
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Five and Ten Frame Tools
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• Build quantities
• Compare quantities
• Establish ten as a unit (benchmark)
• Develop understanding of part-part-whole model
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Five Frame
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Single Ten Frame
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Double Ten Frame
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http://www.beam.co.uk/
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Animals on Board
Stuart J. Murphy
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BUILD Math Numeracy Centres in Action
•B – Buddy Building
•U – Using Tools
• I – Investigating
• L – Linking Math
• D - Discovering
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TBC 165537
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Math Centres
• Building sets of numbers
• Comparing quantities
• Sequencing in numerical order
• Problem solving
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Bowling
• Bowling Record
Sheet
• Use bingo dabbers
to track the # of
pins still standing
each turn
• Print number in
box
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Literature Connections • Ten Black Dots (Donald
Crews)
• “7 purple dots is a robot’s face.”
• Or…
• Students create what makes sense to them.
• Try using lick and stick circles, bingo dabbers, or other shapes
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The Teacher’s Role
• listen to what the students say
• watch what they do
• ask questions
• respond carefully
• provide time talk
• allow students to struggle
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Jason’s Story . . .
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How do you know . . . ? Tell me what you are thinking . . . What do you see in your head . . . ? Show me what you know . . . Tell me what you know . . . How did you do that . . . ? What did you notice . . . ? What questions did you ask yourself . . . ? If you were going to tell someone else what you did . . ? What was your strategy . . . ? How did you start . . . ? Close your eyes. What do you see . . . ? What do you think the problem is . . . ? Why do you think ____ . . . ?
Questions to extend thinking …
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Math Talks
What math connections did I make today?
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Number Talks…
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Number Sense – A Combined Grades Resource for
Kindergarten and Grade 1 Math Classrooms
Carole Fullerton
http://mindfull.wordpress.com/
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TBC 164961
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Starting With the Beginning Sandra Ball
http://startingwiththebeginning.word
press.com/
Carole Fullerton
http://mindfull.wordpress.com/
![Page 71: Building a Solid Foundation of Number Sense...Building a Solid Foundation of Number Sense Sandra Ball ball_s@sd36.bc.ca August 29, 2012 Agenda •Big Ideas •Number Sense Routines](https://reader035.fdocuments.in/reader035/viewer/2022062414/5e574374afada0631d3e5419/html5/thumbnails/71.jpg)
Children will become confident “doers” of
mathematics only if mathematics makes sense to
them and if they believe in their ability to make
sense of it.