Big Ideas
·
Representation – numbers can be modeled
and represented in many different ways (e.g., materials, diagrams, number
charts, partial/open number lines)
·
Enumeration – whole numbers are used
to count collections, counts can be achieved in multiple ways, and different
units can be used to say how many or how much
·
Equivalence – numbers can be renamed
in many different but equivalent ways, renaming is a special type of
representation
·
Relationships – numbers can be used to
compare and order
The
children have explored a number of mathematical experiences around Place Value
and will continue to develop their understandings in term 2.
Mathematical
ideas explored:-
Place-value (10-999):
Numbers to 1 thousand are made up of a count of hundreds (1-9), a count of tens
(0-9) and a count of ones (0-9) where the place of the digit indicates the unit
Renaming (place-value):
Numbers can be renamed in many different ways (e.g., 65 is 6 tens and 5 ones or
65 ones, 472 is 47 tens and 2 ones etc)
Comparing/ordering (10-999):
Numbers can be compared and ordered on the basis of the value of the digits in
comparable place-value locations
Skip counting is
counting by a number that is not one (e.g., counting by 2s, 5s, and 10s); skip
counting reveals patterns in numbers.
Counting (place-value): Counting
forwards or backwards in place-value units from a given number requires a
knowledge of the number naming sequence and the structure of the base ten
numeration system.
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