Comparing and Ordering Integers
Using number lines and inequalities to compare and order integers.
Key Questions
- Construct a number line to accurately order a set of integers.
- Explain how inequalities are used to describe relationships between integers.
- Predict the outcome of comparing two integers based on their position on a number line.
Ontario Curriculum Expectations
About This Topic
Microscopic Worlds introduces students to the hidden life forms that exist all around us, from the bacteria in our soil to the yeast in our bread. This topic focuses on the structure and function of microorganisms and their vital roles in maintaining healthy ecosystems. Students explore how these tiny organisms contribute to decomposition, nutrient cycling, and even food production, while also learning about those that can cause disease.
In the context of Ontario's biodiversity standards, students investigate how microorganisms are the foundation of many food webs. They learn to appreciate that 'invisible' does not mean 'insignificant.' This unit also provides an opportunity to discuss public health in a Canadian context, including the importance of clean water and vaccinations. Students grasp this concept faster through structured observation and peer explanation of what they see under a lens.
Active Learning Ideas
Stations Rotation: The Microbe Zoo
Set up stations with prepared slides, digital microscope images, and pond water samples. Students rotate to sketch different microbes and identify features like cilia, flagella, or cell walls.
Role Play: The Decomposition Crew
Students take on roles as bacteria, fungi, and detritivores in a forest ecosystem. They act out the process of breaking down a fallen log, demonstrating how nutrients are returned to the soil.
Think-Pair-Share: Helpful vs. Harmful
Students are given a list of microorganisms (e.g., Lactobacillus, E. coli, Yeast). They must research one, decide if it is helpful or harmful to humans, and present their 'case' to a partner.
Watch Out for These Misconceptions
Common MisconceptionAll bacteria and microorganisms are 'germs' that make you sick.
What to Teach Instead
Teach that the vast majority of microorganisms are either harmless or essential for life. Using a collaborative investigation into fermented foods like yogurt or sourdough can visually prove the benefits of 'good' bacteria.
Common MisconceptionMicroorganisms are not 'real' animals or plants because they are too small.
What to Teach Instead
Explain that they are living organisms with the same basic needs as larger creatures. Observing live pond water under a microscope allows students to see microbes moving and feeding, which corrects this error quickly.
Suggested Methodologies
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Frequently Asked Questions
What are the main types of microorganisms studied in Grade 6?
How do microorganisms affect the Canadian environment?
What are the best hands-on strategies for teaching microbiology?
Is a virus considered a microorganism?
Planning templates for Mathematics
5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
unit plannerMath Unit
Plan a multi-week math unit with conceptual coherence: from building number sense and procedural fluency to applying skills in context and developing mathematical reasoning across a connected sequence of lessons.
rubricMath Rubric
Build a math rubric that assesses problem-solving, mathematical reasoning, and communication alongside procedural accuracy, giving students feedback on how they think, not just whether they got the right answer.
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