Provided by Sandra Cathcart, taken from the numeracy project resources.

## Category: Number and Algebra

Provided by Sandra Cathcart, taken from the numeracy project resources.

Has questions and answers and covers:

Finding a percentage of a quantity

Finding one quantity as a percentage of another

Find the total given the percentage of the total

Contextual problems

Increasing or decreasing by a percentage

Finding the original with increasing or decreasing by a percentage

Initially from https://www.tes.com/teaching-resource/algebra-zoo-fun-substitution-worksheet-11029048

Made by Helen Teal

Problem initially published in NZ Herald.

Collated by Helen Teal from various sources along with some original ideas

For Algebra Patterns and relationships.

Made by Helen Teal and Nicola Mann. Initial idea taken from https://illuminations.nctm.org/uploadedFiles/Content/Lessons/Resources/6-8/CrowAndPitcher-AS.pdf

Note: There is an accompanying powerpoint “The Pitcher and the Crow Investigation”

For Algebra Patterns and relationships.

Made by Helen Teal and Nicola Mann. Initial idea taken from https://mathequalslove.blogspot.com/2016/11/the-crow-and-pitcher-rate-of-change.html

Note: There is an accompanying worksheet “Worksheet for Pitcher and Crow”

A collaborative work by Helen Teal, Tanya Gwillam and Nicola Mann (from Whangarei Girls’ High School) using the NZ Curriculum Documents and the curriculum elaborations from NZ Maths.

We used this to help with our teaching and assessment of the topic.