3D geometry, equations – A plant in your stomach (advanced)

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, […]

Equations – Witty sister (basic)

Concepts addressed: systems of equations, date calculation.Recommended grade: 8th.Difficulty level: Basic.An advanced version of Witty sister is also available. Scenario: You’re visiting your friend at their house, and are soon approached by their little sister. She’s recently taken to riddles, and she can’t wait to tell you her recent one.  With a grin on her

Equations – Witty sister (advanced)

This scenario tests basic arithmetic, quadratic formula and date calculation.Recommended grade: 8th.Difficulty level: Basic.A basic version of Witty sister is also available. Scenario: You’re visiting your friend at their house and are soon approached by their little sister. She’s recently taken to riddles, and she can’t wait to tell you her most recent one. With