# percentages

## From a Square to a Rectangle

- Problem Solving Activities
- Number and Algebra
- Level Five

Solve problems involving percentage increases and decreases

Apply the area formulas for squares and rectangles

Devise and use problem solving strategies to explore situations mathematically (be systematic, use a diagram).

## How many Words?

- Units of Work
- Number and Algebra
- Level Four

This unit compares the frequencies of different parts of speech in different kinds of text. This provides an opportunity to discuss and categorise parts of language, as well as a practical context in which to use percentages, and generate pie graphs.

## Ratios

- Units of Work
- Geometry and Measurement
- Level Five

In this unit we use the theme of drinks to develop an understanding of ratios. It is suitable for students working at Level 5 of the curriculum or Stage 8 of the Number Framework. The unit provides a sequence of demonstrations and questions to help guide students' learning. It includes activities that require students to convert between the metric units for capacity, and to use their knowledge of fraction, decimal and percentage conversions. Students use proportional thinking to explore, compare and combine ratios. The unit concludes with a session on rates (a subset of ratios).

## Mix Up 2

- Units of Work
- Number and Algebra
- Level Five

This unit uses one of the digital learning objects, Mix Up 2, to support students as they investigate finding average percentage of the contents of differently sized containers. It is suitable for students working at Stage 8-Advanced Proportional of the Number Framework. It includes problems and questions that can be used by the teacher when working with a group of students on the learning object, and ideas for independent student work.

## Round the Track

- Units of Work
- Geometry and Measurement
- Level Five

This unit is about making calculations in the real life situations of athletics.

## Travel to School II

- Units of Work
- Statistics
- Level Four

In this unit students investigate the times taken and the distance travelled in coming to school, using a spreadsheet to produce data displays and investigate distributions. This unit follows on from Travel to School I, which contains a basic introduction to using Excel. If you have not looked at that unit we suggest you begin there.

## Travel to School I

- Units of Work
- Statistics
- Level Four

In this unit students investigate methods of travel to school, using a spreadsheet to produce data displays and investigate distributions.

## I'm Spinning

- Units of Work
- Statistics
- Level Three

This week we use spinners to develop our understanding of the probability of simple events occurring.