Many thanks, Joel!

It's a great read, all science PGCEs should read it, good that you're suggesting it to them!

I shared his FIFA blog with our PGCE student only yesterday - it’s great!

It may be "oh but it's KS3" but if they can confidently use inverse operations, it sets them up well for equations like this...

I've outright banned triangles 😅

Triangles don't teach the pupils to rearrange and I find it leads to them attempting to remember more.

The formula, where they go on the triangle, what to do with the triangle etc.

If pupils can rearrange one equation, they rearrange them all.

I’d been thinking that, but when the formula triangle appeared I wasn’t certain. Doing W=mg with Y8.

Coupled with inverse operation from Physics Online youtu.be/wzdFRmFFBOg?...

It has to be FIFA from @emc2andallthat.bsky.social

physicsteacher.blog/2019/10/27/f...

Great responses to this. One of the biggest misconceptions about Newton’s 3rd is that the forces can cancel out. This is impossible as a Newton 3 interaction always describes forces on two separate objects. This slide in no way explains why there is no resultant force and feeds the misconception.

I beg to differ, Coolio Bill 😎

Thank you so much, Joel. Really appreciate the shout out.

FIFF? How very dare you😂

Woo hoo! Delighted to sign the book (so far the only ever time I've been asked for a signature)

Glad to be with the cool kids at last 😂

Physics teacher, interested in conversations about physics education