Technologies · Year 1 · Hardware and Software Heroes · Term 1

Input and Output Devices

Understanding how we give information to a device and how it gives information back to us.

• ACARA Content Descriptions
• AC9TDE2K01

About This Topic

Input and output devices provide the essential links between users and computers. Input devices collect data from users, such as keyboards for typing, mice for clicking, touchscreens for finger taps, and microphones for voice commands. Output devices deliver responses from the computer, including screens for visuals, speakers for sounds, and printers for hard copies. Year 1 students connect these to everyday tools like tablets during playtime or family photo viewing.

Aligned with AC9TDE2K01, this topic builds foundational digital technology knowledge. Students address key questions by explaining touchscreen detection through electrical changes under fingers, comparing output methods like glowing screens versus spoken words, and designing hand-free devices with voice input or large buttons for accessibility. These inquiries foster problem-solving and empathy in design.

Active learning excels with this topic because students experiment directly with devices, seeing instant results from inputs like swipes producing screen changes. Pair testing and group hunts make concepts visible and interactive, helping young learners grasp data flow through trial and error while sparking curiosity about technology.

Key Questions

1. Explain how a tablet knows where your finger is touching.
2. Compare all the different ways a computer can show us an answer.
3. Design a device for someone who cannot use their hands, considering input methods.

Learning Objectives

• Identify common input devices used to provide information to a tablet or computer.
• Compare different output devices and explain how they present information from a computer.
• Demonstrate how a specific input action, like a tap or swipe, causes a change on a screen.
• Design a simple device concept that uses an input method other than touch or typing.

Before You Start

Basic Computer Operation

Why: Students need a fundamental understanding of what a computer or tablet is and that it can be used for tasks before learning how they receive and provide information.

Identifying Objects and Their Functions

Why: This foundational skill helps students classify devices based on their purpose (input vs. output).

Key Vocabulary

Input Device	A piece of hardware that sends data or commands into a computer or device. Examples include keyboards, mice, and touchscreens.
Output Device	A piece of hardware that presents information from a computer or device to a user. Examples include screens, speakers, and printers.
Touchscreen	A screen that can detect the position of a finger or stylus touching it, allowing users to interact directly with what is displayed.
Microphone	An input device that converts sound waves into electrical signals, allowing a computer to 'hear' or record audio.
Speaker	An output device that converts electrical signals into sound, allowing a computer to produce audio.

Watch Out for These Misconceptions

Common Misconception

All computers only use keyboards and screens.

What to Teach Instead

Many devices rely on touch, voice, or motion inputs and outputs like speakers or braille displays. Scavenger hunts reveal classroom variety, while station rotations let students test alternatives, correcting narrow views through direct comparison.

Common Misconception

Touchscreens read minds or use magic to detect fingers.

What to Teach Instead

Touchscreens sense electrical changes from skin contact. Demonstrations with plastic barriers show no response, and paired experiments build accurate models as students observe and discuss cause-and-effect.

Common Misconception

Devices work without any input from people.

What to Teach Instead

All actions start with user input triggering outputs. Whole-class demos halting unresponsive devices highlight dependency, with group predictions reinforcing the input-output sequence.

Active Learning Ideas

Stations Rotation: Input Device Stations

Prepare four stations with keyboard, mouse, touchscreen tablet, and voice recorder. Students spend 5 minutes at each, inputting simple commands like typing names or saying colors, then note what happens. Rotate groups and discuss patterns as a class.

30 min·Small Groups

Output Showdown: Compare Displays

Use a computer to show the same picture via screen, speakers describing it, and printed copy. Pairs predict and test which output works best for different needs, like eyes closed, then vote and explain choices.

25 min·Pairs

Design Dash: Inclusive Device Sketch

In pairs, students brainstorm and draw a device for someone unable to use hands, listing input options like foot pedals or eye tracking. Share sketches whole class and vote on creative ideas.

35 min·Pairs

Classroom Hunt: Device Detective

Provide checklists of input/output examples. Students work individually to find and photograph three in the room, then share findings to classify as input or output.

20 min·Individual

Real-World Connections

• App developers for children's educational games use touchscreens as the primary input method, designing buttons and interactive elements that respond to taps and swipes.
• Librarians use barcode scanners (input devices) to check books in and out, and computer screens (output devices) display book information and due dates for patrons.
• Assistive technology specialists design communication boards with large buttons or eye-tracking systems (input devices) for individuals who cannot use their hands, allowing them to interact with computers and express themselves.

Assessment Ideas

Quick Check

Present students with pictures of various devices (e.g., a tablet, a speaker, a keyboard, a printer). Ask them to sort the pictures into two groups: 'Things that put information IN' and 'Things that show information OUT'. Discuss their choices.

Exit Ticket

Give each student a slip of paper. Ask them to draw one input device and label it, and draw one output device and label it. Then, ask them to write one sentence explaining what information goes into the input device or comes out of the output device.

Discussion Prompt

Show a video of a person using a voice assistant like Siri or Alexa. Ask students: 'What is the input device here? What is the output device? How does the device know what the person is saying?' Encourage them to explain the process in their own words.

Frequently Asked Questions

How do I explain how touchscreens detect fingers?

Compare it to a light switch: your finger completes an electrical circuit on the screen, changing its charge to pinpoint location. Use a simple demo with foil and a battery to mimic, then let students test tablets. This grounds abstract tech in familiar electricity ideas, taking 10 minutes.

What activities work in low-tech classrooms?

Repurpose toys like remote-control cars as input-output models: buttons input speed, lights and sounds output. Draw device diagrams or role-play with props. Scavenger hunts for household items extend learning home, ensuring all students engage without devices.

How can active learning deepen input-output understanding?

Hands-on stations and hunts provide immediate feedback, like seeing a screen respond to taps, which cements cause-effect links better than lectures. Collaborative rotations build vocabulary through peer talk, while design challenges apply concepts creatively. This approach boosts retention by 30-50% in early years via kinesthetic engagement.

How to assess the design a hand-free device question?

Use rubrics checking input ideas, like voice or switches, and reasons for user needs. Observe pair discussions for empathy and pair sketches for creativity. Quick shares reveal understanding; follow with reflections like 'What input did you choose and why?' for evidence aligned to AC9TDE2K01.