Helpful Videos
Models and Images
Part-part whole model
Bar Model - addition/subtraction.
Bar Model - multiplication/division.
Addition
Using a number line.
Column addition 1.
Column addition, introducing exchanges.
2-digit + 2-digit.
3-digit + 3-digit.
Subtraction
Using a number line.
Column subtraction 1.
Column subtraction, introducing exchanges.
2-digit - 2-digit.
3-digit - 3-digit.
Difference.
Multiplying and Dividing by a multiple of 10.
Multiplying by a multiple of 10.
Dividing by a multiple of 10.
Multiplication
Repeated addition.
Arrays
2-digit x 1-digit.
2-digit x 1-digit with exchanges.
2-digit x 2-digit.
Multiplying a decimal.
Division
Repeated subtraction.
Repeated addition.
Number line with remainders.
2-digit Ă· by 1-digit using place value counters.
Short division.
Long division.
Fractions
Fractions of shapes.
Fractions of amounts.
Equivalent fractions.
Improper fractions and mixed numbers.
Adding and subtracting fractions.
Multiplying fractions.
Division of fractions.