Show what you know!

Why do we use tally marks when collecting data?

• To keep track of how many times something happens or is chosen

• To draw pictures of the data

• To decorate the graph

• To write down random thngs

What does a bar on a column graph represent?

• A number that is hard to see

• A picture of the data

• A category or group

• It doesn't represent anything

If 8 students prefer Dogs and 5 students prefer Cats, which pet would show a higher column in a graph

• Cats

• Dogs

• Both, as they are equally popular

• Neither, as they aren't popular

How do we count data using tally marks?

• By drawing pictures

• By grouping sets of 5 tally marks

• By guessing the numbers

• By using a calculator

What does the Y-axis on a column graph represent?

• Categories

• It doesn't represent anything

• It represent anything you want

• The number of items or people

How can you make a graph easier to understand?

• Use the same colour everywhere

• Label everything clearly

• Don't use intervals

• Make it as messy as possible

Why is it important to have equal spaces between the bars in a column graph?

• So it is neat and easier to compare the data

• So the bars don't move

• To fill in the spaces

• To make it colourful

What does the X-axis on a graph represent?

• Time

• Numbers

• Nothing

• Categories

If you were to create a tally table to count how many different pets people have, which of these would be a great question to ask?

• What's your favourite colour?

• How many pets do you have?

• What's your favourite food?

• Don't ask a question, just ask

When you make a tally chart, what do you do when you reach the fifth tally mark?

• Start a new tally

• Write the number next to it

• Cross the fifth mark to group them

• Use a different colour