Video Transcript
Tally Charts
In this video, we will learn how to
read information in tally charts. The owner of this ice cream van
sells lots of ice creams. He wants to know which flavor of
ice cream is the most popular. Each time he sells an ice cream, he
records the flavor. Every time he sells a vanilla ice
cream, he adds a tally to the chart. This is how many ice creams he’d
sold by the end of the day. He can use his tally chart to work
out which is the most popular flavor of ice cream.
This row shows how many vanilla ice
creams he sold. When we use tally marks, this is
how we show the number five. The ice cream seller sold two lots
of five vanilla ice creams, which means he sold 10 vanilla ice creams. Two fives are 10. How many tally marks are there next
to chocolate? How many chocolate ice creams were
sold? Five and three more makes
eight. He sold 12 strawberry ice creams,
13 mint, and 17 bubble gum–flavored ice creams. Which flavor of ice cream was the
most popular?
We can look in this column of the
tally chart to help us find the answer. Which flavor ice cream has the most
tally marks? It’s the bubble gum flavor. 17 bubble gum ice creams were
sold. The least popular ice cream flavor
was chocolate. Tally charts were a really useful
way of counting the number of something. It’s really quick and easy to count
using tally marks. In this video, we’re going to learn
how to read the information in tally charts, just like this one. Let’s try some practice
questions.
Michael conducted a survey to
determine the favorite type of sandwiches of students in his class. The results of the survey are shown
in this tally chart. Which sandwiches are more popular
than peanut butter?
In this question, we’re shown the
results of Michael’s survey. He surveyed or asked the students
in his class for their favorite type of sandwich. And he recorded his results in a
tally chart. This row of the tally chart tells
us the different type of sandwiches. He asked children if their favorite
sandwich was turkey, roast beef, tuna salad, peanut butter, or ham. In the second row of the tally
chart, he recorded the number of children who said this was their favorite type of
sandwich.
How many children like turkey
sandwiches the best? We know that this is how we write
five using tally marks. There’s one five and two more tally
marks. We know that five plus two is
seven. Only one person liked roast beef
sandwiches the best. How many children liked tuna salad
the most? Five and one more is six. Eight children liked peanut butter
the most, and 10 children like ham sandwiches the most.
The question is asking us which
type of sandwiches are more popular than peanut butter? If we look closely at the tally
chart, we can see that eight children liked peanut butter the best. Which type of sandwich is more
popular than peanut butter? We need to find the type of
sandwich which has more than eight tally marks. It’s ham. Eight children like peanut butter,
and 10 like ham. We know that 10 is more than
eight. The type of sandwich which is more
popular than peanut butter is ham.
The tally chart shows a group of
students’ favorite superheroes. How many people prefer Wolverine or
Spider-Man?
We’re shown a tally chart. Children were asked to pick their
favorite superhero: Wolverine, Superman, Wonder Woman, or Spider-Man. How many children liked Wolverine
best? It’s five. When we’re counting tally marks,
this is how we show five. One, two, three, four, five. Four students liked Superman
best. Four students also picked Wonder
Woman. And three students chose
Spider-Man.
The question asks, how many people
prefer Wolverine or Spider-Man? We know that five students chose
Wolverine and three chose Spider-Man. If five students prefer Wolverine
and three students prefer Spider-Man, we know that eight students preferred
Wolverine or Spider-Man because five and three equals eight. We read the information in the
tally chart and used it to help us solve the problem.
The tally chart shows a group of
students’ favorite superheroes. Were 14 students surveyed?
We know the tally chart shows us a
group of students’ favorite superheroes: Wolverine, Superman, Wonder Woman, and
Spider-Man. The tally marks tell us the number
of students who chose this superhero. There are two tally marks for
Wolverine, which means that two students chose Wolverine. Three students chose Superman. One chose Wonder Woman, and eight
chose Spider-Man.
The question is asking us if a
total number of 14 students were surveyed. If we add together the number
of students that liked each superhero, that will tell us the total number of
students surveyed. We know that two plus three is
five. Five plus one is six. And six plus eight equals 14,
so 14 students were surveyed. The answer to the question is
yes. Two plus three plus one plus
eight gives us a total of 14. So, 14 students were asked
their favorite superhero.
Daniel recorded the number of
glasses of juice he sells in his neighborhood each day in this tally chart. How many more glasses were sold on
Thursday than Friday and Monday combined?
We know the tally chart tells us
the number of glasses of juice Daniel sells in his neighborhood each day. How many glasses of juice did he
sell on Monday? We know that this is how we show
five using tally marks. We know that five plus two gives us
a total of seven. How many did he sell on
Tuesday? We’ve got two fives plus four more,
which makes 14. On Wednesday, there are three fives
plus one more: five, 10, 15, 16. He sold a lot of juice on Thursday:
five, 10, 15, 20, and one more makes 21. On Friday, he sold five, 10 glasses
of juice.
The question asks us how many more
glasses of juice were sold on Thursday than on Friday and Monday combined. To combine the number of glasses he
sold on Friday and Monday, we need to add these two totals together. On Friday, Daniel sold 10 glasses
of juice. And on Monday, he sold seven. We know that 10 plus seven is
17. We know that 21 glasses of juice
were sold on Thursday.
Now, we need to find the difference
between 21 and 17. To find the difference, we could
count forward starting at 17 until we reach 21. One, two, three, four. The difference between 17 and 21 is
four. Four more glasses of juice were
sold on Thursday than Friday and Monday combined. We read the information in the
tally chart and used it to help us solve the problem.
What have we learned in this
video? We’ve learned how to read
information in tally charts and how to use tally charts to solve word problems.
