Inquiry-Based Lesson
TN-LP-MATH-IB-42221 · v2.7
Solving One-step Equations
IB Diploma · Math · Algebraic Thinking · Algebra · Edexcel
Grade
IB Diploma
Subject
Math
Unit
Algebraic Thinking
Topic
Algebra
Subtopic
Solving One-step Equations
Curriculum
Edexcel
Duration
60 minutes
Difficulty
Higher
Teacher name
Class
Date
Learning objectives
- Recognise and define solving one-step equations accurately.
- Explain the underlying rule of solving one-step equations in your own words.
- Apply solving one-step equations to routine and unfamiliar math problems.
- Justify a chosen method and spot errors in another student's work.
Success criteria
- I can state what solving one-step equations means without notes.
- I can complete a worked example with correct setting out.
- I can solve an unfamiliar question and explain my reasoning.
Prerequisite knowledge
- · Vocabulary from earlier in Algebra.
- · The immediately preceding subtopic in Algebraic Thinking.
- · Number, notation and recording conventions for IB Diploma.
Key vocabulary
Solving One-step Equations · Algebra · Algebraic Thinking · Method · Justify · Evidence
Materials
- · Solving One-step Equations worksheet — one per student
- · Mini-whiteboards and pens
- · Exit ticket slips
- · Working-wall vocabulary cards
Technology
- · Projector or interactive display
- · Slide outline (PowerPoint export)
- · Optional: student devices for the interactive worksheet
- · Low-tech alternative: printed model examples
Preparation checklist
- Print the student worksheet and the exit ticket
- Load the slide outline and the hook
- Prepare the three differentiation packs
- Set out practical or manipulative equipment
- Have the answer key to hand for live marking
Standards alignment
- · Edexcel — Math IB Diploma: Algebra strand
- · Algebraic Thinking unit outcome: apply solving one-step equations accurately
- · Assessment objective: reason, justify and communicate in math