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1.2 - operations - done (number line (other number lines (tape…
1.2 - operations - done
number line
for addition and subtraction
in conjunction with partitioning of numbers for larger numbers
for addition followed by inverse (subtraction)
other number lines
tape measure/ruler
markings on a measuring jar
numbers on doors on a street
supermarket aisles
for multiplication
using ruler to do repeated addition
folding tape measure x times
#
for division
1.c other ways of arranging numbers
ladder
hundred square (1-10, 11-20, 21-30 etc)
spiral grid
zig zag grid
groups of objects
addition/subtraction
mental methods
form the basis for efficient written methods
start adding symbols to pictures
understand place value as so many units + so many tens etc.
multiplication
repeated addition
arrays (rectangles)
3.c scaling
3.d a grid method
division
repeated subtraction
equal sharing
inverse of multiplication
organise the number to be divided into a rectangle
5 doubling and halving
6 real-life problems