Year 2 · Statistics · Summary
Year 2 Statistics: summary and key words
Part of the Year 2 statistics chapter. Chapter overview · whole chapter on one page
Chapter summary
| Skill | Method |
|---|---|
| Groups | Count the objects in each group, once each. Compare the counts to find the most and the fewest. |
| Tally chart | Each mark is one thing. Count the full groups of five first, then the marks left over. |
| Pictogram | Each picture stands for one thing. Count the pictures in a row. |
| Block diagram | Each block stands for one thing. Count the blocks in a column. |
| Table | Find the name, then read the number in the same row. Use the total to find a hidden number. |
| Totals and comparisons | Add the counts for a total. Take the smaller count from the bigger one for how many more or fewer. |
| Sorting | Put the counts in order, from the smallest to the biggest, then write the names in that order. |
Can you…?
- I can count the objects in each group
- I can read a tally chart, with groups of five marks
- I can read a pictogram, where each picture stands for one thing
- I can read a block diagram, where each block stands for one thing
- I can read a simple table and find a number in it
- I can find the most, the fewest and the total
- I can compare two counts to say how many more or fewer
- I can sort the categories from the fewest to the most
Key terms
- category
- a group of things that are alike, such as all the fruit.
- tally chart
- a chart that counts with marks. Each mark is one thing.
- group of five
- five tally marks: four going up and one going across them.
- pictogram
- a chart that uses pictures to show counts. Each picture stands for one thing.
- block diagram
- a chart that uses blocks in columns. Each block stands for one thing.
- table
- counts written in rows and columns, so they are easy to read.
- total
- all the counts added together.
- most
- the biggest count.
- fewest
- the smallest count.
- sort
- put things in order, for example from the fewest to the most.