MYP Maths Extended 4-5 Logarithms – Unit E1 lessons and assessment

MYP maths extended unit on logarithms and exponential functions, years 4–5: 5 animated lessons, worksheets and 3 criteria A–D assessments with rubrics.
Students sketch exponential growth and decay graphs, understand logarithms as the inverse of exponentials, use the laws of logarithms, solve exponential equations and build exponential models for medicine, money and populations. The unit is framed by the global context of scientific and technical innovation.
What’s included
• 5 animated PowerPoint lessons (65 slides, plus PDF copies): Exponential Functions; Logarithms; Laws of Logarithms; Solving Exponential Equations; Exponential Models
• Each lesson: inquiry question, starter, key ideas, 4 criterion-tagged worked examples, a practice task from levels 1–2 to 7–8 with a model answer, exit ticket and reflection
• 5 worksheets (Word + PDF) in three level bands, with full answers
• Task 1: Criterion A test (50 minutes, 34 marks) with markscheme and marks-to-level conversion
• Task 2: How Many Digits? investigation (Criteria B and C), using logarithms to count the digits of powers
• Task 3: Caffeine and Sleep real-life task (Criteria D and C), using half-life models to give advice
• Teacher guide: unit planner (key and related concepts, statement of inquiry, inquiry questions), lesson plans, misconceptions and grade boundaries
Why teachers use it
Each click reveals the next line of working, so students predict before you show them. Tasks come with student rubrics, checklists, model solutions and moderation notes, and everything is editable.
Part of a full course
This is Unit E1 of the 6-unit MYP 4–5 Extended course, which complements our 10-unit Standard course. Next unit: MYP Maths Extended Trigonometry – Unit E2 lessons and assessment. Save over 40% with the MYP Maths 4–5 Extended Course Bundle – 6 units with assessments.
Last updated: 2 November 2026 (first version). Written for the current MYP mathematics guide (first assessment 2022). Independent resource, not endorsed by the IBO.