### Year 1 and Year 2

Across Years 1 and 2, the children will be taught a range of strategies to ensure they are fluent in their recall of addition and subtraction facts. By our children becoming fluent in the following facts this will allow the children to tackle more complex maths more effectively.

Year 1 we teach strategies for facts within 10 (steps 1 – 7) and in Year 2 we teach the bridging ten facts (steps 8 – 11).

• Adding 1 (e.g. 7 + 1 and 1 + 7)
• Doubles and near double of numbers to 5 (e.g. 3 + 3, 4 + 5, 5 + 4)
• Adding 2 (e.g. 4 + 2 and 2 + 4)
• Number bonds to 10 (e.g. 8 + 2 and 2 + 8)
• Adding 0 to a number (e.g. 3 + 0 and 0 + 3)
• Adding 10 to a number (e.g. 5 + 10 and 10 + 5)
• The ones without a family 5 + 3, 3 + 5, 6 + 3, 3 + 6 (these pairs of facts are the only ones which don’t fit in any of the other families, though the last two can be related to counting in 3s)
• Doubles of numbers to 10 (e.g. 7 + 7)
• Near doubles (e.g. 5 + 6 and 6 + 5)
• Bridging (e.g. 8 + 4 and 4 + 8)
• Compensating

Once children have been taught the strategies, they need to move on to practising their recall of these facts. For many facts, the aim is memorisation, while for others is to recall with speed and fluency in the applied strategy.

Number Facts ### Numbots

In Years 1 and 2, our children have access to NumBots, which is an online resource which allows our children to practise their fluency with addition and subtraction facts.

Read the following for more information about how the website works. There are two modes – Story Mode for Understanding and Challenge Mode for Recall.

Mode 1: Story Mode for Understanding

In Story Mode, the emphasis is on mathematical concepts and is underpinned by a mastery approach to teaching. Story Mode features visual representations, procedural variation, exposure to different calculation strategies and interleaved material all in very carefully sequenced order.

Unlocking Levels

Story Mode is set out as a series of Stages (Rust, Tin, Iron, etc) containing levels, a bit like Angry Birds. Rust is the first Stage and level 1 is unlocked, so this is the place for everyone to start. To unlock the next level, players need to earn two stars by showing sufficient proficiency. The levels in Story Mode follow a natural mathematical progression and move the pupil through the game automatically.

Get In The Habit

Aim for the children to play in Story Mode for three minutes four to five times a week, to get the best out of NumBots. Little and often is key (spaced practice is more effective than blocked practice).

Mode 2: Challenge Mode for Recall

In Challenge Mode, the emphasis is on rapid responses to essential facts and simple sums, against the clock.

Unlocking Challenges

Challenge Mode is locked for new users and is unlocked once players reach a certain level on Story Mode. It’s currently set to unlock part way through Tin stage. There are 20 Challenge levels and only the first is unlocked to begin with. To unlock the next Challenge, players must correctly answer 12 questions in a minute.

Key Skills

Each Challenge focuses on a different key skill:

 Key Skill: Example: 1. Adding and subtracting 1 or 2 within 10 1 + 3, 8 – 2 2. Number bonds to 5 3 + ? = 5 3. Doubles within 10 (i.e. up to 5+5) 4 + 4 4. Adding and subtracting 1 and 2 within 20 17 + 2, 11 – 1 5. Number bonds to 10 3 + ? = 10 6. Adding and subtracting 10 within 20 3 + 10, 16 – 10 7. Doubles within 20 (i.e. up to 10+10) 8 + 8 8. Adding two 1-digit numbers 5 + 7 9. Number Bonds to 20 8 + ? = 20 10. Subtracting 1-digit numbers within 20 14 – 6 11. Adding and subtracting 1, 2 and 10 within 100 1 + 74, 51 – 2, 38 + 10 12. Adding and subtracting 2-digit numbers to/from multiples of 10 20 + 64, 83 – 20 13. Addition by bridging a multiple of 10 25 + 6, 47 + 5 14. Subtraction by bridging a multiple of 10 25 – 6, 42 – 5 15. Number bonds to 100 52 + ? = 100 16. Using compensation to add and subtract within 100 35 + 19, 35 – 19 17. Adding by partitioning two 2-digit numbers 64 + 25, 10 + 64 18. Subtracting by partitioning two 2-digit numbers 64 – 23, 47 – 31 19. Adding any two 2-digit numbers 63 + 56, 63 + 58 20. Subtracting any two 2-digit numbers 76 – 43, 76 – 47

### Welcome to NumBots! Rusty's Scrapheap

Meet Rusty and his friends in this introduction to NumBots Story Mode.