Cross-Topic Connections
📋 What it is
Functions connect to ratios, geometry and patterns — the same rule in many forms.
🗣️ Coach says
Functions live everywhere in maths. A ratio "3 miles per hour" is a linear function. A geometric pattern that grows is a function. Seeing the function inside another topic means one skill supports many.
🧠 Memory hook
A rate, a growing pattern, a graph line — all are functions in disguise.
😂 Giggle
Why was the graph so emotional?
It kept having ups and downs!
😲 Whoa!
The golden ratio appears in a function that describes how sunflower seeds spiral — maths topics meeting in nature.
✅ Quick check: "5 km per hour" — how is that a function?
Say your answer out loud first — then reveal.
Distance is a function of time: d = 5t (a linear function).
A constant rate is exactly a linear function of time.
🧪 Try it! (2 minutes)
Write "4 cm of growth per week" as a function and graph 4 weeks of it.