## 3D geometry – Hair volume (advanced)

Concepts addressed: cylinder volume, cone volume, unit conversion.Recommended grade: 9th.Difficulty level: Advanced.A basic version of Hair volume is also available. Scenario: Every shampoo advert tell us that their product will boost our hair’s volume, but have you ever wondered what the volume of our head of hair actually is? We know, right, who hasn’t?! The […]

Concepts addressed: percentages, unit conversion, quadratic formula, sphere volume.Recommended grade: 9th.Difficulty level: Advanced.A basic version of A plant in your stomach is also available. Scenario: Remember how, as a kid, we were told that if we accidentally swallowed a fruit seed, a tree will grow inside our stomachs? It seems funny today, but oh man,

## 3D geometry – An order of mine (advanced)

Concepts addressed: cube volume, triangular prism volume, square pyramid volume, cylinder volume, percentages.Recommended grade: 7th.Difficulty level: Advanced.A basic version of An order of mine is also available. Scenario: You own a smithy in a small rural town some few miles away from some high mountains. Today seemed like just another lazy day, but suddenly a

## 3D geometry – A plant in your stomach (basic)

Concepts addressed: percentages, date calculation, sphere volume.Recommended grade: 8th.Difficulty level: Basic.An advanced version of A plant in your stomach is also available. Scenario: Remember how, as a kid, we were told that if we accidentally swallowed a fruit seed, a tree will grow inside our stomachs? It seems funny today, but oh man, we didn’t

## 3D geometry – An order of mine (basic)

Concepts addressed: square pyramid volume, triangular prism volume, percentages.Recommended grade: 7th.Difficulty level: Basic.An advanced version of An order of mine is also available. Scenario: You own a smithy in a small rural town some few miles away from some high mountains. Today seemed like just another lazy day, but suddenly a very short, bearded man

## 3D geometry – Hair volume (basic)

Concepts addressed: cylinder volume, cone volume.Recommended grade: 9thDifficulty level: Basic.An advanced version of Hair volume is also available. Scenario: Every shampoo advert tell us that their product will boost our hair’s volume, but have you ever wondered what the volume of our head of hair actually is? We know, right, who hasn’t?! The average hair

## 3D geometry – Building a swimming pool (advanced)

Concepts addressed: percentages, unit conversion, cylinder volume, cylinder area, equilateral triangle area, regular hexagon area.Recommended grade: 7th.Difficulty level: Basic.A basic version of Building a swimming pool is also available. Scenario: This is the year – you’re building an in-ground swimming pool in your backyard! You can already see all the envious faces, but first, someone’s

## 3D geometry – Building a swimming pool (basic)

Concepts addressed: percentages, rectangular prism volume, rectangular prism area, unit conversion, square area.Recommended grade: 7th.Difficulty level: Basic.An advanced version of Building a swimming pool is also available. Scenario: This is the year – you’re finally building an in-ground swimming pool in your backyard! You can already see all the envious faces, but first someone’s got