Try Rodybee
Pick the level that matches the person practicing. We'll start with a short sample — no signup needed.
Just starting
Ages 5–7
Counting and simple addition.
Counting backward
Ages 5–7
Simple subtraction with little jumps backward.
Body parts
Ages 5–7
Identify head, neck, arms, legs and more.
The 5 senses
Ages 5–7
Match each sense to its organ: see, hear, smell, taste, touch.
Life stages
Ages 6–9
Baby → Child → Teen → Adult → Elder. The order never reverses.
Hygiene basics
Ages 5–8
Hand washing, brushing, bathing — keep germs away.
Skeleton jobs
Ages 7–10
Support, protect, move — the 3 jobs of your bones.
Muscle pairs
Ages 8–11
How biceps and triceps work together (one pulls, the other releases).
Food's journey
Ages 7–10
Mouth → esophagus → stomach → small → large intestine.
Blood vessels
Ages 8–11
Arteries leave, veins return — and capillaries connect them.
Reflexes vs. choices
Ages 8–11
Why pulling away from heat is faster than thinking.
Body defenses
Ages 8–11
How your body fights germs — and why fever is your friend.
First aid: burns
Ages 9–12
What to do (cold water) — and what NOT to do (no butter, no ice).
Multiply by 9
Ages 7–9
The magic 9-trick: ×10 then take one group away.
Divide by 4
Ages 7–9
Half of half. Cut twice to find the answer.
Primary school
Ages 8–10
Two-digit addition with carrying.
Primary subtraction
Ages 8–10
Two-digit subtraction with borrowing.
Middle school
Ages 11–13
Fractions with the same denominator.
High school
Ages 14–18
Laws of exponents (product rule).
The full app picks the level for each kid automatically with a quick placement test. Create a free family account.