Strand D: Structures and Mechanisms

DraftWritten with AI help from the sources it cites, and not yet read by a human editor.

Depth

At a glance

Curriculum expectations

D1 — evaluate the impacts of various machines and their mechanisms on society and the environment
D2 — demonstrate an understanding of the basic principles and functions of machines and their mechanisms

Lessons

A machine for washing handsIdentifying a machine used in daily life, its purpose, and the purpose of each of its parts (D2.1, D2.2).
Turning motion into back-and-forth motionHow mechanisms pass motion on and change it, including rotary motion (D2.3, D2.4).

Brief

Strand D of the Grade 4 Science and Technology course: Structures and Mechanisms. It has two lessons, on the parts of a machine and on how mechanisms change motion. ¹

Sources

Ontario Ministry of Education, The Ontario Curriculum: Science and Technology, Grades 1–8 (2022)

Cite this page

islam.museum contributors. “Strand D: Structures and Mechanisms”. islam.museum, https://islam.museum/en/course/ca-on-g4-science-d/. CC BY-SA 4.0. Last updated 2026-11-12.

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