The teaching of Mathematics has rapidly changed over the past 10 years. The focus in a modern mathematics lesson is deep understanding. This may create a problem for parents who try to help the children but feel that they are unsure of how we do things today. Below are some terms that are explained to support parents.
Strategies that help us understand what we’re doing in Mathematics.
Below are strategies that children use when they are thinking and working mathematically:
Counting across the decades/hundreds 19 - 20 or 299 - 300
Counting backwards makes these transitions even harder. For example to go 30 to 29, the student needs to not only think that the twenties come before the thirties, but also to go to 29 rather than 20.
Estimating
Taking a handful of objects and making an educated assessment of how many there are. Knowing that the answer 136+687 or 1234-432 will be less than 1000. Using their knowledge of place value to estimate logical estimates to a variety of mathematical questions.
Doubles
8+8=16 7+7=14 6+6=12 80+80=160 700+700= 1400
Near Doubles
Knowing that one way of answering 8+9 is that “I know that 8+8=16, and that 9 is simply 8+1, I can add one more to get the answer 17.”
Commutativity
Identifying that 5x7 is the same as 7x5, that 2+19 is the same as 19+2
Using the Distributive Property
That 7x6 is the same as and can be found by adding (7x5)to (7x1)
Skip counting
That 6x3 is the same as counting 6 (and another 6=) 12 (and another 6=) 18.
Using dot arrays
Organising into rows and columns to see the multiplicative structure.
These strategies will help your children develop their mathematical thinking. maybe you could try them at home.