Core Skills Analysis
Science
Mikhail explored a simple machine by making wheel-and-axle models with toothpicks, foam wheels of different sizes, and boards. Through assembling the materials, Mikhail learned that a wheel and axle work together as a simple machine and that changing the wheel size changes a feature of the model. The activity gave Mikhail practical experience turning a science concept into a constructed model. It also supported hands-on problem-solving as Mikhail worked with the parts to create the machines.
Mathematics
Mikhail used foam wheels in different sizes, giving the activity a natural opportunity to notice and compare dimensions. While making wheel-and-axle models, Mikhail encountered how size is a property that can be compared across components. This practical context connected mathematical ideas about measurement and comparison with objects used in a design. The activity also encouraged Mikhail to think about how parts fit together within a model.
Design and Technology
Mikhail designed and assembled wheel-and-axle models using toothpicks, foam wheels, and boards. The task involved selecting and combining materials to represent a simple machine, turning an idea into a physical construction. Mikhail practised making and manipulating components as part of a STEM design process. Comparing different wheel sizes also brought attention to how a design can be made with varied components.
Tips
Tips Extend Mikhail’s exploration by inviting Mikhail to draw and label a wheel-and-axle model, identifying the wheel, axle, and supporting board. Set up a gentle test in which the model moves the same small object across a short, clear surface, and encourage Mikhail to compare what happens with different wheel sizes while keeping other parts as consistent as possible. Record observations in a simple table, then discuss which parts moved and what evidence supports the conclusions. Finish with a redesign challenge: use the same materials to make a model that travels in a straight line, and have Mikhail explain the design choices.
Book Recommendations
- Simple Machines by David A. Adler: An accessible introduction to simple machines, including how they help people do work.
- The Way Things Work Now by David Macaulay: An illustrated guide to mechanisms and machines that helps readers explore how designed parts work together.
- How Machines Work: The Interactive Guide to Simple Machines and Mechanisms by Nick Arnold: A visual, activity-oriented introduction to machines and mechanisms for curious young readers.
Learning Standards
- Science — SC4-FOR-01: Mikhail constructed a model of a simple machine, connecting the activity with the study of forces and their effects in everyday contexts.
- Science — SC4-WS-07: Selecting and assembling materials to make a model supported practical problem-solving.
- Science — SC4-WS-08: The model provided a concrete way to communicate an idea about how a simple machine is built.
- Mathematics — MAO-WM-01: Comparing foam wheels of different sizes connected mathematical reasoning with a hands-on construction task.
Try This Next
- Labelled drawing: Sketch the model and label the wheel, axle, and board.
- Comparison chart: Record the wheel sizes used and observations from a simple movement test.
- Design prompt: How could you arrange the parts to help the model travel in a straight line?
- Quick quiz: What parts make up a wheel-and-axle machine, and what did Mikhail use to build them?