Stage 3 – I Can Count To 10!
Introduction, Stage 3 Introduction
Where You’ve Been
Your child counts up and down between 0 and 10 and understands what those quantities mean. Early addition and subtraction skills are developing. An important foundation for those skills is confidence with adding and subtracting 1 and 2 with small numbers. Your child understands small quantities, and reasons with those quantities to do addition and subtraction for small numbers.
In addition to that wonderful stuff, your child reasons so much better now! They understand that objects and numbers have properties, and they can reason and do beginning problem solving. Your child is now a full member in family math games and puzzles and exploring the mathematical world around them
New ideas for this stage
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- Counting On – Count upward starting at any number, rather than always starting at 1. This is useful for addition and for finding differences.
- Counting Down – This refers to counting downward starting at any number. It is useful for subtracting, as well as for developing a sense for the relationships between numbers.
- Number Bonds – These are all pairs of numbers that add up to a specific number.
- Ten Frames – Represent a number from 0 to 10 as that number of dots inside a 2 by 5 rectangular grid. For numbers greater than 4, the upper group of 5 squares is always filled.
- Expanded Form – This refers to writing a multi-digit number broken down into the contribution of each of its digits. For example: 25 = 20 + 5 and 317 = 300 + 10 + 7.
- Fact Families – This refers to a group of closely related math facts. For example, 2 + 5 = 7 is in the same family as 7 – 2 = 5 and 7 – 5 = 2.
- Adding twins and near twins – An adding twin is adding a number to itself, such as 4 + 4. A near twin is one away from a twin, such as 4 + 5.
- Doubling, multiplying by two, and halving, two equal parts, dividing in two – Children usu- ally enjoy adding twins. With that comes the idea of doubling and multiplying by 2. Also associated with that is halving, splitting something into two equal parts, and dividing by two.
- Even and Odd numbers – Even numbers can be split into two equal parts. Odd numbers have one left over when split into two equal parts. Even numbers are the results of adding twins.
- Skip counting by 2’s – Count up or down by 2’s – such as, 0, 2, 4, 6 or 13, 11, 9, 7.