Dave Marks

In this activity the children calculate the distances they'd have to travel between different locations across the world. The sheet allows them to test their column addition and subtraction skills as well as giving them an idea about the locations of major world cities. The sample questions are split into three levels. This allows the teacher and child to see clear progression and also gives the children the opportunity to self-assess their understanding.

This activity shows the children how companies make money from customers who don't pay upfront. The children calculate the cost of an item after the interest is added, allowing them to see the real price they'd be paying. The activity comes in three differentiated levels: Challenging Fiendish Petrifying (This gives the children a route of progression and allows them to self-assess their understanding when choosing a starting point)

In this activity children are asked to calculate the difference between various locations. The task includes negative numbers so children are forced to count through zero. The activity comes in three differentiated levels: Challenging Fiendish Petrifying (This gives the children a route of progression and allows them to self-assess their understanding when choosing a starting point)

A really nice way of teaching children about negative numbers using the context of depth in water. Children plot the depth of items below sea-level. Most apt for children between 8-11yrs. Answer sheet included.