Lesson · Grade 2 · Mathematics
Finding a missing number with a ten frame
- Grade 2
- Mathematics
- 51 s
- British Columbia
- BC2-MA-14
To answer 6 + ? = 10, six red counters are counted into a ten frame, and the empty boxes are filled with yellow counters by counting on: 7, 8, 9, 10. Counting the four yellow counters gives the missing number 4, which is checked as 6 + 4 = 10, and the recap shows that the empty boxes tell how many more make ten.
Concept: Finding a missing number with a ten-frame
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In one sentence
The question this lesson answers
Six and how many more make ten?
A ten frame has ten boxes.
Transcript
What the lesson says
Six and how many more make ten?
A ten frame has ten boxes.
Let's put in six red counters.
One, two, three, four, five, six.
Fill the empty boxes with yellow counters.
Start at six. Seven, eight, nine, ten.
The frame is full, so it shows ten.
How many yellow counters? One, two, three, four.
So the missing number is four.
Check: six plus four equals ten.
The empty boxes show how many more make ten.
Curriculum
Where this fits
- British Columbia, Grade 2
Mathematics, Patterns and algebra: change in quantity, using pictorial and symbolic representationBC2-MA-14
Previous: Increasing Patterns: Add the Same AmountNext: Equal and Not Equal on a Balance
The outcomes and strands follow the British Columbia curriculum.
Keep going
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