Area of a parallelogram

Success Criteria

I can understand the definition and the formula

of the area of a parallelogram

I can calculate the area of a parallelogram

I can show my workings

DNA

Retrieval practice

1 HP

2 HPs

3 HPs

What is ‘y’ in 10y = 150

How many faces does a cylinder have?

What is the lowest common multiple of

15 and 2?

What is the product of 4 and 51?

How many lines of symmetry is in a

hexagon?

What number is D(roman numerals)?

Retrieval practice answers

1 HP

2 HPs

3 HPs

What is ‘y’ in 10y = 150

Y = 15

How many faces does a cylinder have?

3

What is the lowest common multiple of

15 and 2?30

What is the product of 4 and 51?

204

How many lines of symmetry is in a

hexagon?6

What number is D(roman numerals)?

500

Explain what mistakes people could make doing this and how we could avoid them

Daily practice

0 to 12 times table for 14…

Daily practiceExample: People could not partition properly and add incorrectly

Write the definitions for the words we will come across today – can you think of an example question for the word?

Word Definition Example

Tetrahedron

Square Based Pyramid

Circle

Area of a parallelogram

• Let’s dive straight into it!

Area of a parallelogram

A parallelogram is a quadrilateral (four-sided shape). Each pair of opposite sides is parallel (they will never touch). All you have to do is multiply height by the base.

9cm is the height. 11cm is the base. 9cm x 11cm = 99cm².

Remember the ² and the unit of measure as you are multiplying 2 measurements.

Your turn

Mark your work

• Even if the question looks more challenging, we are still looking for the height and the base. Let’s look at this question:

• The height is 6.5cm

• The base is 8cm

• Height x base = 52cm².

• Ignore the 7cm, it is just extra information.

7

Your turn

Mark your work

36cm² 30cm²

56cm² 72cm²

10cm²

18cm²

Your turn

Mark your work

12cm².30cm². 35cm².

70cm².44cm².240cm².

Your turn

Reflection

• How do you feel about working out the area of a parallelogram?

• Use your red hat to express your emotions.

Your HOMEWORK task

Draw 4 parallelograms, the area needs to be 24cm² for each.

Complete this task by

answering all the

questions.

Take a picture of your

work

Send this homework task only to

year6@gordonchildrensacademy.

org.uk. Title your work Day 67

Maths

Exit ticket

What went well today?

What errors did you make or avoid today?

What do you feel this lesson has made you want to learn about next?

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