Grades K–2 · 270 readings
Notice how the world works
Begin with familiar shapes, objects and living things. Later readings connect those observations with weather, shared spaces and everyday tools.
Four connected themes →Learn a little. Connect a lot.
Follow a reading path
Choose an age group and follow a clear order, from familiar ideas to more connected explanations. Each semester organizes the readings into small thematic units. Set your own pace.
Grades 3–5 · 318 readings
Connect parts and processes
Follow quantities, mechanisms and material changes through illustrated explanations. Later readings connect these processes with records, shared services and everyday instruments.
Four connected themes →Explore 6 semesters
Semester 1Start with familiar ideas52 readings · 15 unitsSemester 2Follow connected processes53 readings · 16 unitsSemester 3Explore everyday mechanisms54 readings · 17 unitsSemester 4Discover living and designed systems54 readings · 17 unitsSemester 5Connect people, places and ideas52 readings · 18 unitsSemester 6Look deeper into the wider world53 readings · 15 unitsGrades 6–8 · 340 readings
Understand interacting systems
Read how matter, energy, information and evidence move through interacting systems. Quantitative relationships become more explicit as the sequence develops.
Four connected themes →Explore 6 semesters
Semester 1Start with familiar ideas57 readings · 17 unitsSemester 2Follow connected processes58 readings · 19 unitsSemester 3Explore everyday mechanisms57 readings · 17 unitsSemester 4Discover living and designed systems56 readings · 18 unitsSemester 5Connect people, places and ideas57 readings · 17 unitsSemester 6Look deeper into the wider world55 readings · 17 unitsGrades 9–12 · 293 readings
Explain mechanisms and their limits
Connect quantitative models with physical mechanisms and evidence. Later readings bring together uncertainty, feedback, social choices and representations.
Four connected themes →