IB Middle Years Programme Sciences: Subject Overview

With inquiry at its core, the IB Middle Years Programme Sciences framework aims to guide students to independently and collaboratively investigate issues through research, observation and experimentation. The curriculum explores the connections between science and everyday life – as students investigate real examples of science applications, they discover the tensions and dependencies between science and morality, ethics, culture, economics, politics and the environment. This real-world orientation is a deliberate design choice of the MYP as a whole, distinguishing it from more traditionally structured pre-16 science curricula that separate content mastery from its ethical and social implications.

How schools structure this subject

Schools may vary the structure of the sciences curriculum throughout the five years of the programme, generally developing discrete, modular or integrated science courses. Discrete sciences courses typically encompass biology, chemistry and physics (and may include other disciplines such as environmental or life sciences); modular courses include two or more discrete sciences taught in rotation. This is different from the Diploma Programme or Cambridge/Edexcel-style qualifications, which teach biology, chemistry and physics as fully separate subjects. A student, or a parent comparing MYP Sciences with a GCSE or IGCSE-style science qualification, should confirm directly with a school which structure it uses, since “MYP Sciences” alone does not specify whether the underlying teaching is discrete, modular or integrated.

Aims

Reflecting this real-world orientation, the MYP sciences group aims to encourage and enable students to:

• understand and appreciate science and its implications
• consider science as a human endeavour with benefits and limitations
• cultivate analytical, inquiring and flexible minds that pose questions, solve problems, construct explanations and judge arguments
• develop skills to design and perform investigations, evaluate evidence and reach conclusions
• build an awareness of the need to effectively collaborate and communicate
• apply language skills and knowledge in a variety of real-life contexts
• develop sensitivity towards the living and non-living environments
• reflect on learning experiences and make informed choices, carrying an inquiry-based approach forward into whichever further science study a student chooses beyond age 16.

How it’s assessed

MYP Sciences is assessed against four equally weighted criteria, each scored on an eight-point scale (1-8), regardless of whether a school teaches discrete biology, chemistry and physics or an integrated science course: Criterion A, Knowing and understanding; Criterion B, Inquiring and designing; Criterion C, Processing and evaluating; and Criterion D, Reflecting on the impacts of science. Because all four criteria carry equal weight, a student who is strong on content recall (Criterion A) but weak on designing a fair-test investigation (Criterion B) cannot compensate for that gap through content knowledge alone – each criterion is reported and, in schools using eAssessment, examined separately.

Schools that opt into MYP eAssessment for an IB-validated result can sit an on-screen exam in biology, chemistry, physics or integrated sciences, built from three tasks: a knowing-and-understanding task (criterion A, 25 marks); an investigation-skills task covering inquiry, design, data collection and evaluation (criteria B and C, 50 marks); and an applying-science task requiring students to reflect on real-life implications (criterion D, 25 marks). As with other MYP subjects, most schools assess primarily through classroom-based, criterion-referenced coursework rather than this optional external exam, so a student’s actual grade profile over the five years is built almost entirely from teacher-assessed work sampled against the same four criteria used in the optional eAssessment.

Discrete versus integrated: what it means for a student

Whether a school teaches discrete, modular or integrated sciences is a curriculum design decision made by the school, not the individual student, and it shapes how classroom time is organised through the five years of MYP rather than what is ultimately assessed against. A discrete-sciences school timetables biology, chemistry and physics as genuinely separate subjects across the week; a modular school rotates two or more discrete sciences in blocks; an integrated school teaches all science as a single course exploring cross-disciplinary themes. Whichever structure a school uses, the same four assessment criteria (A-D) apply, and MYP eAssessment offers an integrated-sciences exam option alongside the discrete biology, chemistry and physics options, so the structural choice does not close off any particular assessment route.

Investigations as the central assessed skill

Across all four criteria, MYP Sciences places heavy emphasis on the investigation cycle: forming a testable question, designing a fair method, collecting and processing data, and evaluating both the results and the investigation’s own limitations. This is the same underlying skill set assessed under Criteria B and C, and it is deliberately built to be transferable across biology, chemistry, physics or integrated science content – a student who has practised this cycle thoroughly in one science strand should be able to apply the same structured thinking when a new topic or discipline is introduced, rather than needing to relearn investigation technique from scratch each time.

How this connects to the Diploma Programme

Because MYP Sciences can be taught as an integrated or modular course, students moving on to DP sciences (Biology, Chemistry, Physics, or ESS) sometimes need a deliberate transition, since the DP teaches these as fully separate, discrete subjects with distinct syllabuses and their own SL/HL structure. A student from an integrated MYP sciences background is not disadvantaged in principle – the MYP’s emphasis on inquiry, investigation design and evaluating evidence (criteria B and C) transfers directly into DP science’s internally assessed investigations – but it is worth confirming with a school’s DP coordinator how a given MYP structure has prepared a student for their chosen DP science subjects specifically.

Source

International Baccalaureate Organization, Sciences subject brief (Middle Years Programme), from 2014.