Forming and solving linear equations Student activity Play

Formulas Student activity Play

Fractions in the equations Animation Play

Frequency density Student activity Play

From the formula to the equation Whiteboard exercise Play

From the formula to the equation Student activity Play

From the formula to the equation Whiteboard exercise Play

From the formula to the function and from the function to the equation Student activity Play

Geometric problem Whiteboard exercise Play

Guessing date of birthday Simulation Play

Guessing your number Game Play

Harry's number Whiteboard exercise Play

How does it work? Animation Play

How many are there? A more difficult problem Student activity Play

How many different divisors does a natural number have? A more difficult problem Student activity Play

How many were there? A more difficult problem Student activity Play

How many? A more difficult problem Student activity Play

How much does an apple weight? Whiteboard exercise Play

How much does it cost? Student activity Play

How much does it cost? Whiteboard exercise Play

How much does it weigh? Student activity Play

How much does it weigh? Simulation Play

How much does it weigh? How much does it cost? Student activity Play

How much does the notebook cost? Whiteboard exercise Play

How much does the stamp cost? Simulation Play