The Billion-dollar Flush by Wayne Erb is an engaging non-fiction text that takes students deep beneath Auckland to explore one of New Zealand’s largest and most ambitious infrastructure projects: the Central Interceptor wastewater tunnel. Through clear explanations, diagrams, and real-world voices from engineers, geologists, and environmental advisors, students learn how science, technology, and engineering work together to solve complex urban and environmental problems.

This text supports students to build strong comprehension of complex informational texts, interpret technical vocabulary, and analyse how authors use structure, diagrams, and real examples to explain sophisticated ideas. The text also encourages critical thinking about sustainability, population growth, and human impact on waterways, helping students connect learning to real issues in Aotearoa New Zealand. This text is ideal for inquiry learning, STEM integration, and discussions about future-focused solutions for growing cities.

 

This pack contains a range of structured literacy activities including

• Spelling rules ck / dge / drop the e / y as a consonant or vowel
• Sounds of -ed
• Exploring parts of language - adverbs, adjectives, nouns, verbs etc
• Doubling or not when adding -ing, -ed
• Floss rules
• Compound words
• Identifying and naming suffixes
• Identifying and naming prefixes
• Vowel teams
• Root words
• Controlling 'r'
• Diagraphs
• Schwa words
• Ghost diagraphs
• -oo- and -oo- / -au and -ow / 
• Hard and soft c and g
• Common subordinating conjunctions
• And much more!!

 

Curriculum Phase: Phase 3

Year Level: Year 8

English – Reading: comprehension of complex non-fiction, technical vocabulary, author’s purpose, text structure and features, integrating information from text and diagrams, making connections to real-world issues

Technology – Technological Knowledge: large-scale engineering systems, problem-solving and design, infrastructure development, evaluating technological solutions, future-focused planning

Science: environmental impact, water systems, sustainability, human impact on ecosystems

Text Type: Non-fiction / informational report with diagrams and explanatory text

 

Key words include: Aotearoa New Zealand, Auckland, Central Interceptor, diagrams, engineering, engineers, environmental impact, flooding, geotechnical engineering, geologists, groundwater, infrastructure, informational text, pipes, pollution, population growth, pumps, sewerage, sewerage networks, sewage, sewers, STEM, stormwater, sustainability, technical vocabulary, technology, treatment plants, tunnel-boring machine, tunnels, urban growth, water systems, waterways, wastewater.