Computer Science
Grade 3
20 min
Working with Images: Finding and Editing Pictures
Learn how to find and use images in multimedia projects, including basic image editing.
What you'll learn
- Identify at least three different sources for finding images online (e.g., search engines, free image websites) with 100% accuracy.
- Apply basic image editing techniques (cropping, resizing, rotating) to at least one image using a designated online tool, and successfully save the modified image.
- Explain in their own words, the importance of using images legally and ethically, including avoiding copyright infringement, with at least two valid points.
- Resize an image to specific dimensions (e.g., 200x200 pixels) using an image editing tool with no more than one error.
Tutorial Preview
1
Introduction & Learning Objectives
Learning Objectives
Use specific keywords to find appropriate images for a digital story.
Save an image from the web to a specific folder on the computer.
Use a basic editing tool to crop an image.
Add text to an image using an editing tool.
Explain that a digital picture is made of tiny dots of data called pixels.
Apply an 'If-Then' rule to decide which editing tool to use.
Have you ever wanted to make your own digital birthday card or create a picture story about a magical dragon? 🐉 Let's learn how to find the perfect pictures and make them your own!
Today, we will become digital artists! We will learn how to find pictures on the computer, save them, and use special tools to change them. This will help us make our digital stories look amazing.
Real-World...
2
Key Concepts & Vocabulary
TermDefinitionExample
ImageA picture you can see on a computer screen. It's a type of digital data.A photo of your pet cat or a drawing of a superhero on a website.
PixelA tiny, tiny square of color that is a piece of data. Millions of pixels work together to make one big image.If you zoom in very close on a picture, you can see the little squares of color. Each one is a pixel.
KeywordA special word you type into a search bar to tell the computer what you are looking for.To find pictures of dogs, you would use the keyword 'dog' or 'puppy'.
CropAn editing tool that lets you cut away the parts of a picture you don't want, like trimming paper with scissors.If you have a picture of a whole garden but only want the flower, you can crop the picture to show just the...
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Core Syntax & Patterns
The Keyword Search Rule
Use specific keywords to find the best pictures.
When you search, think of the most important words that describe what you want. Instead of 'animal', try 'fluffy orange cat' to get better results.
The 'If-Then' Editing Rule (Conditionals)
IF I want to [goal], THEN I will use [tool].
This is how we make decisions for editing. For example: 'IF I want to remove the background, THEN I will use the crop tool.' or 'IF I want to add my name, THEN I will use the text tool.'
The Click-Event Rule (Events)
WHEN I click on a tool or button, THEN the computer does an action.
The computer waits for you to do something, like click a button. WHEN you click 'Save', an event happens, and the computer p...
4 more steps in this tutorial
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Challenging
When you zoom in very close on a digital picture, you see it's made of tiny squares of color. If a picture looks 'blocky' or 'pixelated', it means...
A.The picture file doesn't have enough data to show more detail.
B.The picture was taken with a brand new camera.
C.The picture has too many colors.
D.The computer's screen is broken.
Challenging
You are making a digital story about a spooky, mysterious forest. You have a bright, sunny picture of a forest. What is the BEST combination of edits to make the picture fit the spooky mood?
A.Increase brightness and add heart stickers.
B.Make it smaller and flip it horizontally.
C.Decrease the brightness and add a blue or gray color filter.
D.Crop the picture and add funny text.
Challenging
Your friend emails you a story they wrote in a text document, and inside the document is a picture you want to edit. What must you do FIRST, before you can open the picture in a photo editing program?
A.Email the story back to your friend.
B.Add more words to the story.
C.Change the color of the text in the document.
D.Right-click on the picture and save it as its own image file.
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Frequently asked questions
What grade level is "Working with Images: Finding and Editing Pictures"?
Working with Images: Finding and Editing Pictures is a Grade 3 Computer Science lesson on ExcelOS.
What will I learn in Working with Images: Finding and Editing Pictures?
You'll be able to: Identify at least three different sources for finding images online (e.g., search engines, free image websites) with 100% accuracy; Apply basic image editing techniques (cropping, resizing, rotating) to at least one image using….
Is "Working with Images: Finding and Editing Pictures" 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 Working with Images: Finding and Editing Pictures?
This lesson includes 27 practice questions across multiple difficulty levels, each with instant feedback and explanations.