Dave Marks

A good activity for testing the children's ability to use a formula and multiply using decimals. The problems on the worksheet involve finding the circumference of 6 circles and the perimeter of 2 semi-circles. The answers are included.

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)

Children must use their understanding of perimeter to finding the missing length, using the total perimeter and missing side to support them. 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)

This activity challenges children to find the discounted price of an amount. The worksheet features bar models to help the children visualise the problems. Answers are included.

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.

Scale FactorsPupils must calculate missing lengths using scale factor of two given lengths.

Children need to use their understanding of equivalent fractions to shade the shapes. The activity comes in three differentiated levels: Challenging/Fiendish/Petrifying - giving the children a route of progression and choice over a starting point.

6 Multi-step percentage problems. These problems were designed to help children consolidate the understanding of 100%. The worksheets challenge the children to find the missing mass using the information provided. Bar models are given for each question to help children to visualise the problem. Answers included.

A problem solving activity where the children must use the given formulas to calculate the area and perimeter of different shapes. The 7 problems require quite a bit of reasoning so this activity would be most suitable for children 9yr-13yrs. Answers are included.

A good problem solving activity for children from 8yrs-12yrs. The activity is to make various totals (some decimals) using a given selection of decimal number cards. The worksheet states whether the children are to use 2, 3 or even 4 decimal numbers to reach their total. The extension activity challenges the children to come up with as many combinations of decimals to reach 1. Proved very popular with my year 6 class.

A challenging set of 6 problems where children use ratio to calculate missing angles. The first two problems have bar models, which help the children to visualise the calculation they need to solve. The ratios are fairly straight forward and would be suitable for children 9yr-12yr. Answers included.

Three differentiated conversion grids for children to complete.

Worksheet of bar model percentage problems using weight (kg/g)

Weight Problem SolvingChildren use the vegetable stand prices to solve money problems. *Challenges children to halve and double *Use logic and reasoning

Two very challenging bar model problems where pupils must use logic and reasoning to calculate the answer.