envision mathematics - council rock school district · 2014. 11. 3. · scott foresrnan -...
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enVision Mathematics
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Importance of Number Sense
and Mental Math
Number Sense includes understanding of number
meaning and numerical relationship (ex. 13)
Place value, (de)composing numbers, properties,
order of magnitude
Teaching for understanding is crucial for
computational fluency and long term retention
Apply mathematical skills to many situations
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Solid foundation in whole numbers, addition, subtraction, multiplication, division, fractions and decimals build the foundation to successfully apply more demanding math concepts and
procedures, and move into applications.
Stress not only procedural skill but also conceptual understanding, to make sure students are learning and absorbing the critical information they need to succeed at higher levels
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KINDERGARTEN
Tens Frame
Breaking numbers apart
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GRADE 1
Part-Part Whole relationships
Involves seeing numbers as being made of two or more parts
Major conceptual achievement of the early years
Increases understanding of subsequent work with:
place value
number concepts
word problems
distributive property
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GRADE 2
Subtraction on a hundreds chart
Number sense development to break numbers apart
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GRADE 3
Partial Products
strong emphasis on place value
it can be used for all number types (whole numbers, decimals and
fractions)
it is later useful in multiplying algebraic terms (t +2)(t+3) = t2 + 2t + 3t +
6.
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QUESTIONS?
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ACTIVITIES