Unit 1. Real numbers

1. Real numbers: the real number line
   

   • Natural numbers
   • Integer numbers. Whole numbers
   • Rational numbers
   • Irrational numbers. 
   • QuizizzEN

2. Intervals

   • Open interval
   • Closed interval
   • Half-open interval
   • Half-lines. the real number line
   • QuizizzES
      

3. Powers. Scientific notation

   • Powers. Properties - Quizizz1EN  Quizziz2
   • Scientific notation. Scale of the Universe - QuizizzEN
   • Operations - QuizizzEN

4. Radicals   teoríaPDF | ejerciciosPDF

   • Some peculiarities of roots - Quizizz
   • Radicals to exponential form - Quizizz
   • Operations with radicals - Quizizz
   • Extraer factores del radical
     
   • Sumar y restar radicales Quizz
     
   • Racionalizar QuizizzES
     

5. Logarithms  

• Rewriting logarithms - Quizizz   LiveWS
• Evaluating logarithms - Quizizz
• Laws of logarithms - Quizizz 
LiveWS    EjerciciosPDF

6. Approximate numbers. Errors