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Computing Quiz - Algorithms - How to Make an Algorithm 2 (Questions)

A good algorithm has steps in the right order and clear words. In this quiz, you will test instructions, improve them, and learn how to make them easier to follow.

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(quiz starts below)

Fascinating Fact:

Test your algorithm with a friend, and see if they get the same result. If they do not, you may need clearer steps.

In KS1 Computing, children learn that algorithms are instructions that can be followed to complete a task. When you make an algorithm, you choose a goal, break it into small steps, and put those steps in a sensible order. Testing helps you spot unclear parts, because different people might interpret the same words differently if the instructions are not precise.

Key Terms

Goal: What you want to happen at the end of your steps.
Precise: Very clear, so there is no confusion.
Test: To try the steps to see if they work as planned.

Frequently Asked Questions (Click to see answers)

How do I know if my algorithm is clear enough?

Your algorithm is clear enough if someone can follow every step without guessing, and they get the result you expected when they test it.

What should I do if my algorithm does not work?

If your algorithm does not work, check each step in order, find where it goes wrong, and change the unclear or missing instruction, then test again.

What are examples of algorithms for KS1?

Examples of KS1 algorithms include steps for brushing your teeth, making a sandwich, getting dressed, or giving directions to move around a classroom.

Try These Related Quizzes

1.

Ella and her Dad are making a pizza. The ingredients for the base of the pizza are:

Flour
Yeast
Water

What is the first step in the algorithm?

[ ]	Eat the pizza
[ ]	Buy the pizza
[ ]	Add the toppings
[ ]	Mix the flour and yeast

2.

What does Ella do next?

[ ]	Add the water to the flour and yeast
[ ]	Put the flour and yeast in the oven
[ ]	Add the toppings
[ ]	Cut up the pizza

3.

Ella’s Dad says that the dough needs to be mixed really well.

What is the next step in the algorithm?

[ ]	Mix the flour and yeast
[ ]	Add water to the flour and yeast
[ ]	Mix the dough thoroughly
[ ]	Add the toppings

4.

Ella reads the recipe. It says, ‘Leave the dough to rest for 15 minutes.’ Ella’s Dad says that the dough should be left in a warm place.

What is the next step in the algorithm?

[ ]	Ella and her Dad should sit down in a warm place for 15 minutes
[ ]	Leave the dough in a warm place for 15 minutes
[ ]	Have a rest
[ ]	Add the toppings

5.

After 15 minutes, Ella spreads out the dough into a circle. Her pizza base is ready for the toppings.

What should Ella write down now for her algorithm?

[ ]	Cut the pizza
[ ]	Add the toppings
[ ]	Bake the pizza
[ ]	Spread the dough to make a circle

6.

Ella has spread out the dough into a circle. What is the next step?

[ ]	Eat the pizza
[ ]	Bake the pizza
[ ]	Add the toppings
[ ]	Make the dough

7.

Ella’s Dad says that the pizza is ready to bake. Ella says, ‘It looks really tasty. I can’t wait to eat my pizza.’

What is the next step in the algorithm?

[ ]	Eat the pizza
[ ]	Taste the pizza
[ ]	Bake the pizza
[ ]	Make the dough

8.

Ella’s Dad looks in the oven. He says that the pizza is ready. So he takes it out of the oven. Ella and her Dad share the pizza. So Ella cuts it in two.

Which one of these is the next step in the algorithm?

[ ]	Bake the pizza
[ ]	Add the toppings
[ ]	Cut the pizza
[ ]	Buy the ingredients

9.

What comes next?

[ ]	Eat the pizza
[ ]	Bake the pizza
[ ]	Cut the pizza
[ ]	Wash the pizza

10.

And then?

[ ]	Add flour and water
[ ]	Add yeast and water
[ ]	Wash up
[ ]	Add the toppings

You can find more about this topic by visiting BBC Bitesize - What is an algorithm?

Computing Quiz - Algorithms - How to Make an Algorithm 2 (Answers)

1.

Ella and her Dad are making a pizza. The ingredients for the base of the pizza are:

Flour
Yeast
Water

What is the first step in the algorithm?

[ ]	Eat the pizza
[ ]	Buy the pizza
[ ]	Add the toppings
[x]	Mix the flour and yeast

What does Ella use to do the mixing in?

2.

What does Ella do next?

[x]	Add the water to the flour and yeast
[ ]	Put the flour and yeast in the oven
[ ]	Add the toppings
[ ]	Cut up the pizza

Ella is making a dough

3.

Ella’s Dad says that the dough needs to be mixed really well.

What is the next step in the algorithm?

[ ]	Mix the flour and yeast
[ ]	Add water to the flour and yeast
[x]	Mix the dough thoroughly
[ ]	Add the toppings

Ella has already made the dough. Now it needs to be mixed really well

4.

Ella reads the recipe. It says, ‘Leave the dough to rest for 15 minutes.’ Ella’s Dad says that the dough should be left in a warm place.

What is the next step in the algorithm?

[ ]	Ella and her Dad should sit down in a warm place for 15 minutes
[x]	Leave the dough in a warm place for 15 minutes
[ ]	Have a rest
[ ]	Add the toppings

What does yeast do to the dough? - Makes it rise

5.

After 15 minutes, Ella spreads out the dough into a circle. Her pizza base is ready for the toppings.

What should Ella write down now for her algorithm?

[ ]	Cut the pizza
[ ]	Add the toppings
[ ]	Bake the pizza
[x]	Spread the dough to make a circle

Once the dough is spread out, then Ella can add the toppings

6.

Ella has spread out the dough into a circle. What is the next step?

[ ]	Eat the pizza
[ ]	Bake the pizza
[x]	Add the toppings
[ ]	Make the dough

Which toppings do you like on a pizza?

7.

Ella’s Dad says that the pizza is ready to bake. Ella says, ‘It looks really tasty. I can’t wait to eat my pizza.’

What is the next step in the algorithm?

[ ]	Eat the pizza
[ ]	Taste the pizza
[x]	Bake the pizza
[ ]	Make the dough

The pizza is baked in an oven

8.

Ella’s Dad looks in the oven. He says that the pizza is ready. So he takes it out of the oven. Ella and her Dad share the pizza. So Ella cuts it in two.

Which one of these is the next step in the algorithm?

[ ]	Bake the pizza
[ ]	Add the toppings
[x]	Cut the pizza
[ ]	Buy the ingredients

What fraction of the pizza does Ella give to her Dad? - Half

9.

What comes next?

[x]	Eat the pizza
[ ]	Bake the pizza
[ ]	Cut the pizza
[ ]	Wash the pizza

Do you like eating pizza?

10.

And then?

[ ]	Add flour and water
[ ]	Add yeast and water
[x]	Wash up
[ ]	Add the toppings

Who does the washing-up in your house?