← CSEC Mathematics lessons

1 - Mathematics M1.AL.1 - Symbols, Expressions & Substitution

⭐ +335 XP
  • ✓use symbols to represent numbers, operations, variables and relations
  • ✓translate between algebraic symbols and worded expressions
  • ✓evaluate arithmetic operations involving directed numbers
  • ✓simplify algebraic expressions using the four basic operations
  • ✓evaluate expressions involving binary operations (other than the four basic ones)
  • ✓substitute numbers for variables in algebraic expressions
⏱ 0 mins🎯 67 marks
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Imagine you sell mangoes at $25 each at the Coronation Market. If you sold m mangoes, your earnings are $25m. If you ate p mangoes for free, your earnings drop to $25(m − p). Algebra is just the language of replacing numbers with letters, and CSEC Maths is built on it. Memory Hook: VOLE. Variables, Operations, Like-terms, Evaluate, the algebra workflow.
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💡EngageQuestion 5 of 34

Make a prediction before we start. Predict: which statement do you think best describes variable?

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💡Engage
Imagine you sell mangoes at $25 each at the Coronation Market. If you sold m mangoes, your earnings are $25m. If you ate p mangoes for free, your earnings drop to $25(m − p). Algebra is just the language of replacing numbers with letters, and CSEC Maths is built on it. Memory Hook: VOLE. Variables, Operations, Like-terms, Evaluate, the algebra workflow.
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