Lagrange Operators: Optimization with Constraints

Finding maximums and minimums when rules must be obeyed

Course Description

This course introduces Lagrange multipliers (often called “Lagrange operators” by students), a powerful technique used to optimize functions subject to constraints. Students develop intuition through geometry, gradients, and constraint curves before mastering the formal method and building problem-solving fluency. The course balances conceptual understanding with algebraic precision and includes real-world applications in physics, economics, and engineering.

Target Audience

  • Grade 11–12 students in advanced mathematics
  • Students in IB Math AA HL / AP Calculus / first-year university preparation pathways
  • Physics, economics, and engineering-bound students who want stronger optimization tools

Prerequisites

To succeed in this course, students should already be comfortable with:

  • Partial derivatives
  • Gradients and level curves
  • Optimization of single-variable functions

💡 Tip: If you’re a bit rusty on gradients or partial derivatives, you can still take this course— just plan to review those topics during Unit 1.

🌈 The Physics of Diffraction: Slits, Gratings, and Patterns

See how light bends, spreads, and forms brilliant fringes — step by step.

When light passes through a narrow slit or a diffraction grating, it doesn’t behave “straight-line simple” anymore. This focused course guides you through single-slit diffraction, double-slit interference, and diffraction gratings using clear visuals, intuitive explanations, and worked examples.

  • 🌊 Understand diffraction as wave spreading (when gap size ≈ wavelength)
  • 🔬 Explain single- and double-slit patterns (maxima, minima, fringe spacing)
  • 📐 Use diffraction equations to calculate wavelength and slit/grating spacing
  • 🌈 Connect diffraction gratings to real spectroscopy & modern tech

🧩 Fractions, Ratios & Percentages — Made Calm

Understand the ideas clearly, practise step-by-step, and build confidence.

A short, guided mini-course that helps you make sense of fractions, ratios, and percentages — without rushing, guessing, or memorising tricks.

  • ✅ Simplify & compare fractions
  • ✅ Ratios (and what they actually mean)
  • ✅ Percentages as “out of 100” + conversions
  • 🔐 Final Vault Challenge + badge
Start the Course

⚖️ Solving Equations Made Simple

Learn to rearrange formulae without stress or guesswork

Struggling with equations in math or science? This short, focused micro-course teaches you how to solve equations and rearrange formulae step by step — using clear visuals, interactive practice, and Vault-style challenges.

  • 🧠 Understand equations as balances
  • 🔁 Solve one-step and two-step equations
  • 🔬 Rearrange physics formulae with confidence
  • 🎮 Interactive Vault challenges & instant feedback

🎮 GAMES

Challenge your reflexes, strategy, and focus!

Play classic browser games like Tetris and more. Compete for top scores, track your progress, and explore the logic behind the fun.

  • 🎯 Score tracking
  • 🧠 Strategy meets speed
  • 🏆 Leaderboards & bragging rights

Ideas and notes for developing the YE site

Ideas relating to money management, and growth.

Course Objective:
Students will explore foundational electronics concepts, develop problem-solving skills, and apply interdisciplinary STEM principles to design and construct a functional radio by the end of the course.

Why This Course Matters:
This course bridges theoretical knowledge and practical application, giving students an opportunity to create something tangible. It develops critical skills like teamwork, analytical thinking, and resilience, all essential for 21st-century learners.


Welcome to our family’s favourite collection of comforting dinners and sweet treats! This course is a cozy digital recipe box featuring our tried-and-true meals—some simple, some indulgent, all full of heart. Whether you’re whipping up a quick weeknight pasta bake or baking lemon squares for a weekend gathering, you’ll find what you need here.

🍴 Recipes include:

  • Tuna & Corn (or Pea!) Pasta Bake – Crunchy Topped
  • Chocolate Lava Cakes for Two
  • Hearty Lentil Stew
  • Zesty Lemon Squares
🥄 Visit the Course