# Problem Solving

## CPA approach + Bar modelling in Fraction

Concrete stage: Using connecting cubes as manipulatives Pictorial stage: Drawing of pictures / bar model Abstract stage: Using mathematical symbols and statements   [...]

## Multiplication of Fractions in application

This is the work of a Year 5 (UK) child showing how to present his thoughts in pictorial form and in abstract computation format. [...]

## Bar Model: What’s Ethan’s age?

Ethan is as old as his aunt now. The ratio of Ethan’s age to his aunt’s age was 1 : 7 ten years ago. [...]

## Bar Model: Pears & Mangoes

Ali bought 8 pears and 6 mangoes. A mango costs 4 times as much as a pear. If 2 pears and 1 mango [...]

## Sharing a quarter of a watermelon

Based on the number of watermelons in the diagram shown on the left, how many people can share these watermelons if each were [...]

## Bottle caps as maths manipulatives

There are many items in the rubbish bin which can be used as Maths manipulatives. Why throw them away when children can use them as [...]