103: ada lovelace: the first programmer (ks2)
Step back in time to meet Ada Lovelace, the world's first computer programmer! A fun and interactive KS2 computing lesson exploring the history of code.
The Countess of Code: Unlocking Ada's Secrets
Ada Lovelace was born in London over 200 years ago, in 1815. While other children were busy playing with traditional toys, Ada loved mathematics, science, and studying how machines worked. She was absolutely fascinated by invention!
When she grew up, she met a clever inventor named Charles Babbage. Charles had designed a gigantic, mechanical calculating machine called the Analytical Engine. It wasn't like the computers we use today - it didn't have a glowing screen, a mouse, or even electric wires. Instead, it was designed to be made of thousands of brass cogs, metal gears, and heavy levers, and it was going to be powered by hot steam!
While Charles Babbage focused on how to build the physical parts of the machine, Ada looked at what the machine could do. She realised that the Analytical Engine didn't just have to work with numbers like a giant calculator. She believed that if you gave the machine the right rules, it could create letters, music, and art.
Ada wrote a detailed set of instructions to make the Analytical Engine calculate a complicated sequence of numbers. A step-by-step set of instructions given to a computer is called an algorithm. Because she was the very first person to ever write an algorithm for a machine like this, Ada Lovelace is remembered today as the world's first computer programmer! Even though the machine was never fully built during her lifetime, her brilliant ideas changed the world of technology forever.
The local computing museum has lost all its information about the world's first programmer! They need a brilliant historical detective (that's you) to rebuild their digital display before the grand reopening tomorrow.
The Persona
You are acting as The Historian. A Historian looks at clues from the past to understand how things work today. You will dig up facts, sort truth from myth, and share your amazing discoveries with the world!
1
Your Mission Briefing
You need to create a one-page digital poster about Ada Lovelace.
Open your presentation software and create a blank slide.
2
Gather Your Evidence
You need to find out who Ada was and what amazing machine she worked on.
Click this secure search link to find some clues: Search for Ada Lovelace Facts
Look for the name of the inventor she worked with (Hint: his first name is Charles!).
3
Ask the AI Oracle
Sometimes Historians need an expert to explain tricky old inventions.
Use our special AI Oracle to help you understand what Ada actually did!
Click the link below to get your answer.
Act as a supportive, expert computer science tutor. Explain how Ada Lovelace wrote the first computer program. Limit the length of the response to 100 words. Explain this so an 8-year-old KS2 student can understand. Keep the tone encouraging, clear, and avoiding overly academic jargon. Limit your response to 2 short paragraphs. Include 1 real-world analogy. Do not write my essay for me. NO intro, NO outro, NO deviation from the topic, NO follow-up questions.
4
Build the Museum Display
Add a title to your slide. Make it big, clear, and colourful.
Add three text boxes with your top three favourite facts about Ada Lovelace.
Make sure you include the special word AlgorithmA 'recipe' or sequence of 'unambiguous' instructions for solving a problem. and explain what it means in your own words.
Press Ctrl + S to save your amazing work.
Outcome
I have created a one-page digital poster.
I have included the name of the machine Ada worked on.
I have explained what an algorithm is.
I have saved and submitted my work to my teacher.
Last modified: March 5th, 2026
