Reading and Writing Decimals
Students will read and write decimals to thousandths using base-ten numerals, number names, and expanded form.
Key Questions
- Construct the expanded form of a decimal number to the thousandths.
- Explain how to correctly read a decimal number aloud.
- Compare the expanded form of a whole number to that of a decimal number.
Ontario Curriculum Expectations
Suggested Methodologies
Ready to teach this topic?
Generate a complete, classroom-ready active learning mission in seconds.
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.
More in The Power of Place: Large Numbers and Decimals
Understanding Place Value to Millions
Students will investigate the structure of the base ten system for whole numbers up to millions, identifying the value of each digit.
2 methodologies
Reading and Writing Large Numbers
Students will practice reading and writing multi-digit whole numbers using base-ten numerals, number names, and expanded form.
2 methodologies
Extending Place Value to Thousandths
Students will extend their understanding of place value to include decimals, identifying the value of digits in the tenths, hundredths, and thousandths places.
2 methodologies
Comparing and Ordering Decimals
Students will compare and order decimals to the thousandths using various strategies, including place value charts and number lines.
2 methodologies
Rounding Decimals for Estimation
Students will round decimals to any given place, understanding the purpose of rounding in real-world contexts.
2 methodologies