Monthly Archives: February 2019

Areas of triangles

Lesson PowerPoint here. This is a little different from regular lessons. There’s a worksheet (here) to go with it. I usually try and keep everything in one file, but here it just didn’t quite work. I’ve added pictures of the worksheet to the PowerPoint to make the questions easier to go through. I really think… Read More »

Areas of sectors

Powerpoint is here I have circles and compound shapes to go and then that’s circles done. I made some pretty big changes to my area of a circle PowerPoint after doing some questions. There’s now a bit about choosing either the area or circumference formula, as this is an aspect students found really difficult. I’ve… Read More »

Areas of circles

Lesson PowerPoint here. I decided not to go into parts of circles like quarters and halves, but concentrate on using the formula. I figured parts of a circle are easy enough to cover whilst teaching sectors. YMMV.