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Curipod generated lesson: "evaluating expressions". #8-10

Updated 3 months ago

1. Word cloud

120 seconds

In two words, what is an expression?

2. Slide

60 seconds

Evaluating Expressions

Expressions are combinations of numbers and/or operations. To evaluate an expression, substitute values for any variables and calculate the result. Evaluating an expression usually requires using the order of operations.

3. Slide

60 seconds

evaluating expressions

Order of Operations: the order in which mathematic operations must be performed when evaluating an expression. It is usually represented with the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction)

Operands: the values or variables used in an expression. They are the objects that the operators act on.

Operators: the symbols that indicate an operation (e.g. +, -, *, /, etc.)

4. Slide

60 seconds

Did you know?

In mathematics, evaluating an expression means to find its value, i.e. to determine what number it represents. The process of evaluating an expression involves substituting the values of all the variables, constants and operators to find a single number or value. The process of evaluating an expression is sometimes referred to as simplif

5. Open question

180 seconds

Work together in pairs: What is the difference between the order of operations and the distributive property when evaluating expressions?

6. Personalised Feedback

360 seconds

What is the value of the expression 3x + 2y when x = 4 and y = 5?

7. Open question

180 seconds

Work together in pairs: What is the difference between evaluating an expression and simplifying an expression?

8. Poll

60 seconds

What is the value of 5 + 3 * 2?

- 16
- 13
- 11
- 10

9. Poll

60 seconds

Simplify the expression: 4 - (2 + 1)

- 0
- 1
- -1
- -3

10. Poll

60 seconds

Evaluate the expression: (6 - 2) * (4 + 3)

- 14
- 28
- 24
- 32

11. Poll

60 seconds

What is the result of 8 divided by 2 times (6 - 4)?

- 16
- 4
- 12
- 8

12. Poll

60 seconds

Simplify the expression: -5 + (-3) * (-2)

- -11
- 7
- +11
- +7

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