Year 4 Term 6
Key Concepts – Number – Calculation
- Children understand the importance of place value and therefore add the ones together, then tens, then hundreds and finally thousands.
- Children understand that addition is commutative but subtraction is not.
- Children understand that multiplication is commutative but division is not
- The inverse of addition is subtraction and we can use this to check our answers
- Multiplication is the same as repeated addition
- Subtraction is the same as repeated subtraction
- That when you add one digit numbers together and they total greater than 10, you must exchange this into a ten and put it into the tens column. The same should happen if you have more than 10 tens or more than 10 hundreds.
- Children should be able to look at the calculation and make a decision as to how to calculate the answer. Estimation can help with this.
- Children understand the relationship between multiplication and division and use known fact to calculate the answer.
- Children know that when you multiply by 0, the answer is always 0
- Children know that factors always come in pairs
Key Concepts –Topic- measure- Time
- Children understand that you can use your 5 times tables to help you when writing digital time
- Children understand the relationship between AM and PM, and 12 and 24 hours,
- When using 24 hour times, you count in hours from 0-23, and then this resets back to 0.
- Children know that 16:00 and 04:00 are the same time, except one is morning and one is afternoon.
Common Misconceptions – Number- Calculation
- Children may not understand the value of each digit and therefore add ones with hundreds etc
- Children confuse the + and x sign when answering questions
- Children believe that both subtraction and division are commutative
- Children believe that estimation is the correct answer, not just a ‘early correct; answer.
Common Misconception – Topic- Measure- Time
- Children will interchange the 60 and 24 and will think there are 24 minutes in an hour or 60 hours in a day
- Children confuse the minutes and second hands when reading the time
- When children are counting durations which go through an hour, they do not change the hour time.
- Children do not understand that once you reach the 23rd hour, the next hour will be back to 00