Tally charts and pictograms

Hello, and welcome to Myriora Maths! A class votes for their favourite fruit. How can we count the votes quickly, and show them clearly? With tally charts and pictograms! Let's see.

As each vote comes in, draw a line, called a tally mark. Every fifth mark goes across the four before it, making a gate. Then you can count in fives.

Apples: one gate and two more. That's five, six, seven. Bananas: two gates, so ten. Grapes: four.

A pictogram shows the same data with pictures. Here, one apple picture stands for two votes. So seven votes is three and a half pictures.

Always read the key! It tells you what each picture is worth. Half a picture is half the number.

Let's try one together. How many is three gates and one more tally mark? Say it out loud!

Three gates is fifteen. Add one: sixteen!

Here's a question that catches lots of people. In this pictogram, each picture stands for two votes, and Bananas has five pictures. Some people say five votes. But each picture is worth two! Five times two is ten votes.

Your turn! Each picture stands for four votes. Grapes has three pictures. How many votes is that? Pick the right card. You've got twenty seconds, or pause the video. Go!

Time's up! Three pictures, each worth four: twelve votes!

Quick review. Tally marks are drawn in gates of five, so you can count in fives. A pictogram shows data with pictures. Always read the key, to know what each picture is worth. Half a picture is half the amount. See you next time!