- Define and explain Counting to 10 in your own words
- Use key terms such as Estimate accurately
- Apply what you have learned to new examples and questions
- Avoid the common mistakes learners make with this topic
Counting is the first big step in mathematics. Every number you learn to say and write opens the door to adding, subtracting and solving problems.
This lesson focuses on Counting to 10: count reliably from 0 to 10 using objects and number songs.
Count reliably from 0 to 10 using objects and number songs.
Key ideas
One-to-one counting
Touch or point to each object once and say one number name each time. That way no object is missed and none is counted twice.
Counting on
Instead of starting at 1 each time, keep counting from a number you already know. This makes adding and checking totals much faster.
Key term — Estimate: A sensible guess of how many there are, found by counting part of a group and scaling up.
Which is more: 25 or 29?
29, because 29 comes after 25 when counting.
Answer: 29, because 29 comes after 25 when counting.
- Counting an object twice Point to each object once as you count it, moving counted objects aside if it helps.
- Saying number names out of order Practise the sequence aloud until it is automatic, like the words of a song.
Practice
30 — counting back one from 31 gives 30.
14, 15, 16, 17, 18, 19, 20.
3, 5, 8, 11.
Quick check
Which of these best defines "Estimate"?
Count back in tens from 70 to 30.
- Counting to 10: count reliably from 0 to 10 using objects and number songs.
- One-to-one counting: Touch or point to each object once and say one number name each time.
- Number: A word or symbol that tells you how many there are, such as 7.
- Watch out for: counting an object twice