Grade 9 · ages 14–15

13 lessons · No card needed. The first lesson is free.

Math · 6 lessons

• Not three rights
• 3-4-5
• A parabola
• tan
• Inscribed angle
• Median

Science · 4 lessons

• A circuit needs a closed loop
• A trait that can pass
• Resistance and current
• A new substance

Social studies · 3 lessons

• Desert and coast
• Heat in a place
• A protecting rule

No card needed. The first lesson is free.