enVision Mathematics

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

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

KINDERGARTEN

Tens Frame

Breaking numbers apart

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

GRADE 2

Subtraction on a hundreds chart

Number sense development to break numbers apart

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.

QUESTIONS?

ACTIVITIES