Year 2: Pictograms
Part of the Year 2 statistics chapter. Chapter overview · whole chapter on one page
Pictograms
A pictogram uses pictures to show counts. Each picture stands for one thing.
Each row has a name above it. Count the pictures in the row to find the count.
A row with more pictures has the bigger count.
Key ideas
- Each picture stands for one thing.
- Read the name above each row.
- Count the pictures in one row, then go to the next row.
- A row with more pictures has a bigger count.
Method. Count the ducks once each, touching each one.
- Touch each one once. Say the number as you touch each one.1 2 3 4
- Read the last number. The last number is how many there are.4
- Write the answer. 4
Check. Count them again from the other end. You get 4 again. ✓
Watch out. Move each one to one side as you count it, so you do not count it twice.
Method. Find each count. Then take the smaller count away from the bigger one.
- Count the hens. There are 7.hens: 7
- Count the cows. There are 2.cows: 2
- Take the smaller count away from the bigger one. The difference is how many more or fewer.7 - 2 = 5
- Write the answer. 5
Check. Add the difference back on: 2 + 5 = 7. ✓
Watch out. Take away the smaller number from the bigger one. Do not add them.
Method. Find each count, then add them all together.
- Write down each count. Each count is one row.ducks 4, hens 7, cows 2
- Add the counts together. Add them all, so none is missed.4 + 7 + 2 = 13
- Write the answer. 13
Check. Add them in the other order to check: 2 + 7 + 4 = 13. ✓
Watch out. Make sure every row is in your total, and no row is counted twice.
Watch out
Watch out: each picture stands for one pet here. Count the pictures, not the rows.
Exam tip
Grown-up tip. Draw a pictogram of the pets, toys or fruit at home. Use one drawing for each one. Ask: “Which row has the most? How many pictures in that row?”
Exercise 10C Pictograms
Non-calculatorMethod. Count the cats once each, touching each one.
- Touch each one once. Say the number as you touch each one.1 2 3 4 5
- Read the last number. The last number is how many there are.5
- Write the answer. 5
Check. Count them again from the other end. You get 5 again. ✓
Watch out. Move each one to one side as you count it, so you do not count it twice.
Method. Count the dogs once each, touching each one.
- Touch each one once. Say the number as you touch each one.1 2 3
- Read the last number. The last number is how many there are.3
- Write the answer. 3
Check. Count them again from the other end. You get 3 again. ✓
Watch out. Move each one to one side as you count it, so you do not count it twice.
Method. Count the rabbits once each, touching each one.
- Touch each one once. Say the number as you touch each one.1 2 3 4 5 6
- Read the last number. The last number is how many there are.6
- Write the answer. 6
Check. Count them again from the other end. You get 6 again. ✓
Watch out. Move each one to one side as you count it, so you do not count it twice.
Method. Count the fish once each, touching each one.
- Touch each one once. Say the number as you touch each one.1 2
- Read the last number. The last number is how many there are.2
- Write the answer. 2
Check. Count them again from the other end. You get 2 again. ✓
Watch out. Move each one to one side as you count it, so you do not count it twice.
Method. Compare the counts. The biggest count is the most.
- Write down each count. Put each count next to its name.cats 5, dogs 3, rabbits 6, fish 2
- Find the biggest count. 6 is the biggest count.biggest: 6
- Write the answer. The rabbits row has 6.rabbits
Check. Every other count is smaller than 6. ✓
Watch out. Check every count, not only the first two. The most is the count that is bigger than all the others.
Method. Compare the counts. The smallest count is the fewest.
- Write down each count. Put each count next to its name.cats 5, dogs 3, rabbits 6, fish 2
- Find the smallest count. 2 is the smallest count.smallest: 2
- Write the answer. The fish row has 2.fish
Check. Every other count is bigger than 2. ✓
Watch out. Check every count, not only the first two. The fewest is the count that is smaller than all the others.
Method. Find each count. Then take the smaller count away from the bigger one.
- Count the rabbits. There are 6.rabbits: 6
- Count the dogs. There are 3.dogs: 3
- Take the smaller count away from the bigger one. The difference is how many more or fewer.6 - 3 = 3
- Write the answer. 3
Check. Add the difference back on: 3 + 3 = 6. ✓
Watch out. Take away the smaller number from the bigger one. Do not add them.
Method. Find each count, then add them all together.
- Write down each count. Each count is one row.cats 5, dogs 3, rabbits 6, fish 2
- Add the counts together. Add them all, so none is missed.5 + 3 + 6 + 2 = 16
- Write the answer. 16
Check. Add them in the other order to check: 2 + 6 + 3 + 5 = 16. ✓
Watch out. Make sure every row is in your total, and no row is counted twice.
Method. Work out the count you need, then find the row with that count.
- Work out the count you need. The fish has 2. Add 3: 5.5
- Find the row with 5. The cats row has 5.cats: 5
- Write the answer. cats
Check. Count the cats to check: 5. ✓
Watch out. Work out the number first. Then look for it in the rows.
Method. Find each count, then put the rows in order of their counts, fewest first.
- Write down each count. Put each count next to its name.cats 5, dogs 3, rabbits 6, fish 2
- Put the counts in order, fewest first. Start from the smallest count.2 → 3 → 5 → 6
- Write the order. fish, dogs, cats, rabbits
Check. Check that each count is bigger than the one before it. ✓
Watch out. Compare the counts, not the names. The longest name does not mean the biggest count.
Method. Count both rows, then check the claim.
- Count the dogs. There are 3.dogs: 3
- Count the cats. There are 5.cats: 5
- Check the claim. The claim says there are the same number of dogs as cats. The counts are 3 and 5.No
Check. 3 and 5 are different, so the claim is not right. ✓
Watch out. Compare the two counts, not how big the pictures look.