Building Clear Instructions

Overview

In this first lesson of Bee-Bot Adventures Unplugged, students are introduced to algorithms as ordered sets of instructions. They follow and discuss a silly algorithm, create the steps for brushing teeth, and sequence picture cards before connecting the idea to future Bee-Bot activities.

Learning intentions

Students will:

• understand that an algorithm is a set of instructions for completing a task
• identify that instructions need to be followed in the correct order
• describe a simple algorithm using words, pictures or actions
• work cooperatively to sequence steps and explain their thinking

Success criteria

• I can explain that an algorithm is a set of instructions.
• I can put steps in the correct order.
• I can explain why the order matters.
• I can create or describe a longer sequence of steps.

Curriculum links

• Digital Technologies: follow and describe algorithms involving a sequence of steps, decisions and repetition
• Design and Technologies: sequence steps for making designed solutions cooperatively
• Digital Technologies: investigate simple problems that can be solved with digital systems
• Digital Technologies: identify digital systems and their components for a purpose

Lesson structure (45 minutes)

1. 0–5 min · Hook: follow my instructions. Open with the hook and learning intention slides and give deliberately silly instructions such as “Stand up, touch your toes, clap twice, then sit down”; students follow without questions and share what happened when instructions were unclear, missing or out of order. Explain that a computer or robot cannot guess what we mean—it needs clear instructions.

2. 5–12 min · What is an algorithm? Use the algorithm explanation slide to introduce the child-friendly definition: “An algorithm is a set of instructions that tells us how to complete a task”; model a simple classroom algorithm such as packing a school bag. Students identify the beginning, middle and end, then help improve one unclear instruction, such as “get ready”, by making it specific.

3. 12–20 min · Human algorithm: brushing teeth. Display the brushing-teeth activity slide and ask students to turn and talk about the steps needed to brush their teeth safely and thoroughly. In pairs, students orally create a sequence of 5–7 steps, using sequence words such as first, next, then and finally. Invite one pair to act out the algorithm while the class checks whether any step is missing or misplaced.

4. 20–32 min · Sequence picture cards. Organise 30 students into pairs and distribute the brushing-teeth sequencing worksheet. Students cut out or number the illustrated steps, place them in order and add arrows or sequence words. Pairs compare their sequences with another pair, explain one choice, and revise their work if they identify an error. Circulate and ask, “What would happen if this step came first?” and “Which step must happen before that one?”

5. 32–40 min · Describe and debug. Use the sequencing and debugging discussion slides to show a mixed-up routine, such as putting toothpaste on the brush after brushing. Groups discuss what is wrong, identify the step that needs changing and explain how the corrected algorithm works. Select several students to describe their algorithm aloud, draw it or demonstrate it with actions.

6. 40–45 min · Plenary and exit check. Return to the review and exit-question slides and revisit the definition of an algorithm and why order matters. Students complete the final prompt on the reflection and exit section: “An algorithm is…”, followed by three numbered steps for a familiar task such as washing hands or putting on shoes. Collect worksheets as students leave.

Resources

• the introduction and activity slide deck
• the brushing-teeth sequencing worksheet
• Large-font algorithm definition displayed on the board
• Pencils, crayons and scissors
• Optional document camera or interactive whiteboard
• Space for students to act out instructions

Assessment

• Listen during the hook and discussion for students who recognise that instructions must be clear and ordered.
• Check pair sequences for correct order, use of sequence language and the ability to explain why one step belongs before another.
• Use the exit response to assess whether each student can define an algorithm and independently produce an ordered sequence.

Differentiation

• Support EAL/D learners with additional familiar examples, gestures, real objects and repeated sentence frames: “First I…”, “Next I…”, “Finally I…”. Read all instructions aloud and allow students to explain ideas through drawing or acting.
• For students requiring additional support, provide a reduced sequence of three or four pictures, pre-cut cards and a numbered model showing first, next and last. Pair students thoughtfully and scribe oral responses where needed.
• Use a dyslexia-friendly presentation: large clear sans-serif font, high contrast, uncluttered slides, one instruction at a time and visual icons beside key words. Avoid requiring students to copy lengthy text.
• Advanced learners create a longer algorithm of 8–10 steps for preparing a healthy snack, getting ready for school or organising a game. They identify one step that could be repeated or one place where a decision might be needed.

Extension

• Students write or draw an algorithm for a familiar classroom routine and swap it with a partner, who follows it exactly and reports whether any instruction needs clarification.
• Students add a simple decision to their algorithm, such as: “If the floor is wet, get a towel; otherwise, continue.”