3 lots of 5
321 Mathematics
Strategies
Fact Patterns
Free facts
Doubling
Square numbers
4, 9, 16, 25, 36, 49, 64, 81, 100
Bridging from known facts
Derived facts: 3 + 7 = 10, 13 + 7 = 20
Families of facts: 3 + 7 = 10, 10 – 7 = 3
Number properties, a+0=a
0 facts, 1 facts, 10 facts
Knowledge
Basic facts
Help from home
Pedagogy
Context
NPDP
Number Framework
NZC
Addition / Subtraction
Advanced additive part-whole AA
Early additive part whole EA
Counting
Counting on AC L1
Counting from one (imaging) CA
Counting from one (materials) CA
One to one CA
Emergent E
Division
Quotition (repeated subtraction)
Partition (sharing)
Multiplication
Advanced proportional part-whole AP
Advanced multiplicative part-whole AM
Inverse operations
Factors: the factors of 20 are 1, 2, 4, 5, 10 and 20.
Quadratic multiplcation: 27*34 = (20+4)*(30+7)
Commutativity - a × b = b × a
Start, result and change unknown
Arrays
vertical by horizontal axes.
Skip counting
Language
Number patterns
Doubles
Dealing