Computer Science
Grade 1
20 min
Data Detective Challenge!
Solve a mystery by collecting and analyzing data.
What you'll learn
- Identify at least 3 different types of data (like numbers, letters, colors) in a picture.
- Sort a group of 5 objects (like toys or shapes) into categories based on a given rule (like color or size).
- Explain, using pictures or words, why a set of objects was sorted a certain way.
- Find the tallest and shortest object from a group of 4 objects and correctly identify which is which.
Tutorial Preview
1
Introduction & Learning Objectives
Learning Objectives
Identify what 'data' is using simple examples.
Ask a simple question to collect information.
Collect data by counting objects or asking friends.
Sort collected information into simple groups.
Use tally marks to record collected data.
Explain that data helps us answer questions.
Have you ever wondered what is the favorite class pet? 🐹 Let's be detectives and find out!
Today, we will become data detectives! We will learn how to ask questions and gather clues. This helps us solve fun mysteries with numbers.
Real-World Applications
Choosing a class pet by voting 🗳️
Picking a game to play at recess ⚽
Deciding what snack to have for the party 🍎
Finding out the most popular book in class 📚
2
Key Concepts & Vocabulary
TermDefinitionExample
DataData is just little bits of information.The color of your shirt is data. 👕
CollectTo collect means to gather things together.We can collect data by asking friends a question.
QuestionA question is what we ask to find out something.What is your favorite animal? 🦁
SortTo sort means to put things into groups.Sorting red blocks and blue blocks into piles.
Tally MarksTally marks are a quick way to count things.Four lines down and one across means five! ||||
3
Core Syntax & Patterns
The Ask and Count Rule
1. Ask a question. 2. Listen to the answer. 3. Count it.
Use this simple plan to find out what your friends like.
The Sorting Rule
1. Look at one item. 2. Find its group. 3. Put it there.
Use this to organize your data into neat piles.
The Tally Mark Rule
Draw one line for each answer. Cross the fifth line.
This helps you count easily without getting lost.
4 more steps in this tutorial
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Challenging
A detective wants to find the favorite season (Winter, Spring, Summer, Fall) in the class. What is the best three-step plan (algorithm)?
A.1. Guess the answer. 2. Tell everyone. 3. Go outside.
B.1. Ask everyone their favorite season. 2. Tally the votes. 3. Count the tallies to find the winner.
C.1. Draw a picture of a tree. 2. Color it green. 3. Ask the teacher if they like it.
D.1. Count the votes. 2. Ask the question. 3. See who won.
Challenging
A detective's data is: 'Sunny, Sunny, Rainy, Cloudy, Sunny'. If they want to make a picture chart, what is the MOST important information they need to show?
A.That the detective likes sunny days the best
B.That there were five days in total
C.That rainy days are wet
D.How many of each weather type there were (3 sunny, 1 rainy, 1 cloudy)
Challenging
A friend says, 'I collected data! The answer is 7.' As a data detective, what is wrong with this clue?
A.You don't know what the question was
B.The number 7 is too big
C.The number 7 is unlucky
D.You don't know if they counted correctly
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Frequently asked questions
What grade level is "Data Detective Challenge!"?
Data Detective Challenge! is a Grade 1 Computer Science lesson on ExcelOS.
What will I learn in Data Detective Challenge!?
You'll be able to: Identify at least 3 different types of data (like numbers, letters, colors) in a picture; Sort a group of 5 objects (like toys or shapes) into categories based on a given rule (like color or size); Explain, using pictures or….
Is "Data Detective Challenge!" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Data Detective Challenge!?
This lesson includes 27 practice questions across multiple difficulty levels, each with instant feedback and explanations.