Maths Stage 6 Prove it

In Stage 6 we are learning to: Use the strategy 'Multiplication in Parts' with larger numbers.
I hope you learn something new from my Screencastify.

My Maths Learning Evidence

Hi, Here is a DLO on what I am learning in Level 4 Stage 7 maths.
WALT: Balance numbers in Algebra, and find the unknown numbers.
The equation is 4a = 2a + 30.