On your whiteboards… Find the area 6cm 3cm.

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Presentation transcript:

On your whiteboards… Find the area 6cm 3cm

On your whiteboards… Find the area 5cm 9cm

On your whiteboards… Find the area 4cm 4cm 8cm

What is special about this one? On your whiteboards… Find the area 6cm 6cm What is special about this one?

On your whiteboards… Find the area 12cm 4cm 4cm 12cm

On your whiteboards… Find the area 7cm 30mm What is different here?

On your whiteboards… Find the area 8cm 50mm

On your whiteboards… Find the area 5cm 0.2m

On your whiteboards… Find the area How did you work it out? 24cm2 ? cm

What about if the multiplication is more difficult? 10cm 18cm 8cm 10cm 100cm2 80cm2 252cm2 14cm 4cm 40cm2 32cm2 What calculation do you need to do? Could you use what we did in a previous lesson to help? Let’s partition the rectangle to help

Find the area of the following rectangles (using partitioning to help). Draw them into your books. 46cm 27cm 13cm 52cm

Challenge: Could you partition these shapes to find their areas?

How could we find the area of this shape? Can we calculate its area using what we have done so far? We can partition the shape to make it easier How many ways are there to do this?

This is how two students partitioned their shapes. What are the calculations for each? Do they give the same final area? Is there another way?

How did this student find the area of their shape?

Question 1. Look at the working out below. a) Can you explain how the shape was partitioned to find the area b) Find the area using a different method

Question 2. Find the area of these shapes in as many different ways as possible.

Question 3. Find the area of these shapes in as many different ways as possible.

Question 4. Find the area of this shape in as many different ways as possible.