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Tally Marks

In this video, we will learn how to count objects or votes and record how many there are using tally marks.

People have been using tallies or marks to help them count for thousands and thousands of years. This is a tally bone. People would carve a mark on the bone to represent each count of one. People have also used tally sticks to help them count for thousands of years. One stick is used to represent a count of one. Two sticks represent the number two. Now, we have three, four, five.

When we count using tally sticks or tally marks, the fifth mark is always placed across the other four. When we’re counting large amounts, we can use these groups of five to help us count in fives. A group of five marks and one more is six. Five and two more is seven. Five and three is eight. Five and four is nine. And two groups of five are used to show a count of 10.

We use tally marks in exactly the same way as a tally bone or a tally stick. Each mark is used to represent a count of one. One, two, three, four, five. Remember, the fifth tally mark or tally stick is placed diagonally across the other marks. Grouping tally marks into groups of five helps us to count larger groups of objects. A group of five and one more is six. Five and two more is seven. Five and three is eight. Five and four is nine. And two fives make 10.

A tally chart is a really useful way of helping us to count objects using tally marks, especially when the objects we’re counting can move around. You could use a tally chart to count the number of insects in the garden. How many caterpillars did we count? There’s a group of five tally marks and two more. Five and two more is seven. How many bees were there in the garden? Four. And there were three Ladybirds.

We can use our tally chart to help answer questions about the information we’ve collected. We can say that the most common insect in the garden was the caterpillar and the least common insect was the Ladybird. Let’s practice using tally marks and tally charts.

The tally chart shows a group of students’ favorite superheroes. Do 10 students like Wonder Woman?

In this question, we’re shown a tally chart. It shows a group of students’ favorite superheroes. The students had to choose their favorite superhero from Wolverine, Superman, Wonder Woman, or Spider Man. Each time a student voted for their favorite superhero, their vote was counted with a tally mark.

How many students voted for Wolverine? There are two groups of five tally marks. And we know that two groups of five make 10. There’s only one group of five for Superman. We know that five students voted for Superman. How many students voted for Wonder Woman? Was it 10? There’s a group of five tally marks and four more. Five and four more is nine. So, the answer to the question “Do 10 students like Wonder Woman?” is no. 10 students like Wolverine, five like Superman, nine liked Wonder Woman, and four liked Spiderman. The answer to the question “Do 10 students like Wonder Woman?” is no.

The given tally chart shows items sold at a stationery store. How many fewer pencils than erasers are sold?

In this question, we’re given a tally chart. The chart shows the number of items that were sold at a stationery store. They sold erasers, highlighters, pencils, and scissors. We have to work out how many fewer pencils than erasers are sold. To do this, we need to look closely at the tally chart and compare the amount of erasers and pencils that were sold.

How many erasers were sold? There’s a group of five tally marks and four more. Five and four more makes nine, five, six, seven, eight, nine. And this column shows us the amount of pencils that were sold. There’s a group of five tally marks. We already know that the shop sold fewer pencils than erasers. How many fewer?

We need to find the difference between nine and five. This is the difference. The stationery store sold four fewer pencils than erasers. The difference between nine and five is four. The store sold four less pencils than erasers.

The tally marks show the number of students in a class that play different sports. How many more students play volleyball than soccer?

In this question, we’re shown a tally chart. The chart shows the number of students in a class that play different sports: soccer, volleyball, handball, and swimming. We have to find out how many more students play volleyball than soccer. So, we need to compare the number of students who play soccer to the number of students who play volleyball. When we count using tally marks, we make a group of five in this way to show a count of five.

One group of five is five, and three groups of five are 15. So, the number of children who play soccer is 15. There are four groups of five tallies in the column which shows the number of children who played volleyball. So, we can count in fives to find the total number. Five, 10, 15, 20. Four fives are 20. How many more is 20 than 15? There are five more tally marks. 20 is five more than 15. Five more students play volleyball than soccer.

What have we learned in this video? We’ve learned how to use tally marks to count objects or votes and record how many there are using tally marks.