Music Around the World Presents a diverse sampling of musical styles from a variety of world cultures. Harmony Explores the use of harmony in music, including the relationship between ratios and harmonic chords. Additional elements of music, including rhythm and melody, are also covered. Scales Explains the special role ratios play in the structuring of the musical scale. Also, various types of scales used by different world cultures are explained.
Ratios Learn how to calculate ratios.
Areas Discover formulas for calculating the areas of different shapes. Ancient Numbers Explores the number systems used by the Babylonians, Egyptians, and Romans, and how they influenced the development of the number systems used today. Duplation Learn the doubling techniques the ancient Egyptians used to multiply numbers, and in the process, gain a deeper understanding of the operations of multiplication. Primes Explains prime numbers, prime factors of numbers that are not prime, and the Fundamental Theorem of Arithmetic. SpeedMath Tests your speed and accuracy in addition, subtraction, multiplication, and division.