Number : Lesson 34

Excellent. Well worth looking at the lesson plan (other pdf's contain resources required.) This is written by mathematicians as well as teachers and as such it can help those for whom math is not their strong suit to see the connections between different aspects of a topic. I strongly recommend taking some time to look at some CIMT resources. Includes inequalities (and their representation on the number line), venn diagrams, 'roughly equal to'...