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Oak National Academy
Oak National Academy
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New
New
Year 7

Using your calculator efficiently

I can fluently use certain calculator functions and use a calculator appropriately.

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New
New
Year 7

Using your calculator efficiently

I can fluently use certain calculator functions and use a calculator appropriately.

Download all resources
Share activities with pupils

Lesson details

Key learning points

  1. Division can be inputted using different calculator buttons.
  2. A calculator can produce an error if not programmed correctly.
  3. A calculator reads the input in a specific way, brackets can help with this.

Common misconception

Students often forget to scroll out of an operation or function.

Emphasis the cursor buttons allow users to scroll around the apps, functions and calculations on the calculator.

Keywords

  • Evaluate - Evaluate means to find the value of a numerical or an algebraic expression.

Using the Casio fx 991 Classwiz will have more consistency across the class. If this is not possible, ensure students are able to access the main functions required.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Video

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Starter quiz

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6 Questions

Q1.
What does this calculator button represent?
An image in a quiz
Format button
Fraction button
Power button
Square button
Correct answer: Square root button
Q2.
What does this button represent?
An image in a quiz
Format button
Fraction button
Correct answer: Power button
Square button
Square root button
Q3.
What does this calculator button represent?
An image in a quiz
Format button
Fraction button
Power button
Correct answer: Square button
Square root button
Q4.
__________ means to find the value of a numerical or an algebraic expression.
Cube
Correct answer: Evaluate
Square
Think
Q5.
____________ are used to show negative numbers and group numbers together.
Correct answer: Brackets
Calculators
Power
Roots
Q6.
Work out the answer to $$5.67^3 + 10$$. Write all the digits on your calculator display.
Correct Answer: 192.284263

Exit quiz

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6 Questions

Q1.
What is the purpose of this calculator button?
An image in a quiz
It formats the screen brightness.
Correct answer: It represents the answer in another format.
It formats the equation.
Q2.
Sofia works out $$\sqrt{2.5}\times22$$ on her calculator. Which of these shows the calculator input Sofia should use?
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q3.
Convert $$\frac{280}{250} +1.4^2$$ into decimal form.
Correct Answer: 3.08
Q4.
Ignoring the numbers, which buttons need to be pressed to get this calculation?
An image in a quiz
+ , $$\sqrt{}$$, -, + EXE
Correct answer: + , $$\sqrt{}$$, -, >, + EXE
+ , $$\sqrt{}$$, + EXE
$$\sqrt{}$$, -, + EXE
Q5.
Work out the answer to the calculation shown on the calculator display.
An image in a quiz
Correct Answer: 26
Q6.
Work out the answer to the calculation shown on the calculator display. Write your answer as a decimal.
An image in a quiz
Correct Answer: 0.1575