Dr Fog Presents Pairs that make 10 when adding Year 2 (National Numeracy Strategy) (Based on DFEE Sample Lessons)
Resources Strips of 2cm squared paper (about 20 squares to each strip). Strips of 2cm squared paper with random numbers between 0 and 6
Mental Learning Objective I can find near doubles, using doubles already known. Mental Learning Task
Today you are going to learn about another way to make addition easier. Look for numbers that make 10. Mental Learning Task Put the larger double first.
Use this knowledge to help with adding near doubles. Mental Learning Task Count up to 100 in 10s, starting from
10 Mental Learning Task Can you solve addition sums involving 10. Everyone should call out together.
What is 10 and 3 Mental Learning Task Can you solve addition sums involving 10. Everyone should call out together.
What is 4 and 10 Mental Learning Task Can you solve addition sums involving 10. Everyone should call out together.
What is 10 and 9 Mental Learning Task Can you solve addition sums involving 10. Everyone should call out together.
What is 7 and 10 Mental Learning Task How could could I add these three numbers. 2 5 6
Mental Learning Task How could could I add these three numbers. 3 5 7 Mental Learning Task
Find the two numbers which add up to 10. 3 5 7 Mental Learning Task What do we now have to add?
3 5 7 Mental Learning Task Find pairs that add up to 10. 2 3 8 5
4 6 7 5 Mental Learning Task Cross off each pair that makes 10. 2 3 8 5 4 6 7 5
Mental Learning Task Write 10 elsewhere on the board. 2 3 8 5 4 6 7 5
Mental Learning Task How many tens have you? 2 3 8 5 4 6 7 5 Mental Learning
Objective I can find near doubles, using doubles already known. Main Learning Objective I can look for pairs of numbers with
a total of 10 when adding. Main Learning Task Today you are going to work in pairs in order to discuss your ideas. Look for near doubles.
Share a strip of squared paper with numbers in each square. Main Learning Task Cut the numbered strips into 3-square chunks and work together to add the
numbers. How will you record the answers? Main Learning Task Simplest work: Provide strips already showing random numbers between 0 and 6.
Main Learning Task Next simplest: Pupils write any number up to 9 in each square. Then cut up. Main Learning Task
Second Hardest Pupils write any number up to 15 in each square. Main Learning Task Hardest: Pupils write any number up to 30 in
each square. Cut into 4-, 5- or 6square chunks. Main Learning Task How many of these problems can you solve. Easy
Middle Hard 5+2+1
9+6+ 11 9 + 6 + 11+ 9 12 + 3 + 5
9 + 15 + 7 + 5 3+4+2 1+5+6 6+3+5
9 + 15 + 7 12 + 3 + 5 + 27 12 + 9 + 4 + 30 Main Learning
Objective I can look for pairs of numbers with a total of 10 when adding. Plenary Write one of your sets of three numbers on the board.
How did you solve it? How else could they have done it? Plenary Hands up if you.
Used Doubles or Near Doubles Plenary Hands up if you. Looked for
pairs that make 10? Plenary Hands up if you. Put the
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