## Height vs arm length- are they related?

Here’s a great little investigation into whether a person’s height and arm length are related. The pupils get a copy of this worksheet and have to use a metre stick to measure the height and arm length of ten of their class colleagues to the nearest cm. After recording their results in a table they draw a scatter graph and answer the questions at the bottom of the worksheet to think about whether there is a correlation. They could beĀ encouragedĀ to share their findings and justification with the class in a discussion in the plenary.

You’ll need metre rulers or tape measures and graph paper for this lesson in addition to the worksheets. Enjoy!

Found this post useful? Please consider checking out our sponsored links to support this blog.

Advertisements

## The Area Song…

How do you teach kids to remember how to calculate areas of shapes? Here’s one method…

Sing the following song to the tune of Pop Goes The Weasel:

Verse 1:

Multiply the length by the width

Gives the area of a rectangle.

Base times height divided by two

Now gives a triangle.

Verse 2:

Half the sum of the parallel sides

Times the distance between them.

That’s the way to calculate

The area of a trapezium.

If you start them off in year 7 regularly singing the first verse, then move them onto singing the second verse regularly in year 9 by the time they get to their exam in year 11 they’ll never forget how to calculate areas!

Here is a link to a pdf file with the song lyrics on that you can show on the interactive white board.

I can’t remember who told us of this one but a big thank you to you!

Found this post useful? Please consider checking out our sponsored links to support this blog.