Numerical Patterns (03:07)
Algebra helps us study numerical patterns. Hong Kong is the world's most densely populated city; we find number patterns involving Hong Kong high rises.
Introducing Pronumerals (03:37)
Pronumerals or variables are letters that represent numbers. Learn to express relations between variables algebraically, and solve equations, in word problem situations.
Number Patterns and Shapes (03:36)
Learn to express information about shape patterns using algebraic equations: c=2L+1.
Order of Operations (02:35)
In Hong Kong's Central Plaza Building, lights cycle through colors. A formula related to this uses subtraction and multiplication. We multiply and divide before we add and subtract.
Order of Operations and Brackets (01:44)
This word problem requires adding before division. Using brackets allows us to follow the order of operations. BEMDAS is a mnemonic device for the order of operations.
Order of Operations: Exponents (02:06)
A formula shows how air temperature changes at the Great Wall of China over a twelve hour period; we apply the order of operations and solve the equation for a variable.
Simplifying Expressions (03:06)
In Asia, many people travel by scooter or bike. Learn to simplify an expression by adding coefficients of like terms, for a formula involving the number of people and scooters, or people and bikes.
Credits: Algebra: The Basics (00:21)
Credits: Algebra: The Basics
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