I remember when we did these at school.
The teacher explained it to the class and asked me the answer. I had no idea what she was on about. She repeated herself and that made no difference. Then she repeated herself again, and feeling completely stupid I again got the answer wrong.
That night I explained to my dad that I didn't get it and when he explained it using a set of scales it made perfect sense.
I hope his logic helps you too.
#algebra #maths #understandingalgebra #mathsmadevisual #creativeteaching #clarajamestutoring