MTH1W Unit 1: The Story of Numbers

Where do our numbers come from, and how do we use them to describe the world? Students build a community of mathematicians with number talks, explore number systems from many cultures (Babylonian base 60, Maya base 20, Indian rules for zero and negatives, Chinese counting rods and the Kaktovik numerals created by Iñupiaq students), sort numbers into sets, discover density, infinity and limits with their first Python loops, and build fluency with integers and positive and negative fractions through temperatures, elevations, recipes and carpentry.

Assessment of learning: a Number Story research project and a set of real-world rational-number problems, with a rubric. A unit test with full solutions is also included.

Lessons

1. Number Talks
2. Where Numbers Come From
3. Sorting Number Sets
4. Between Any Two Numbers
5. Infinity and Limits
6. Integers in Context
7. Unit Fractions and Measuring
8. Signs and Rational Numbers
9. Adding and Subtracting Fractions
10. Multiplying and Dividing Fractions
11. Number Story Share and Review

Plus a unit test class.

What you get

• A teacher lesson plan for every lesson: curriculum expectations, learning goals and success criteria, a timed sequence, differentiation, look-fors and worked answer keys
• Detailed slideshows (15 to 18 slides per lesson) with speaker notes on every slide: what to say, what to ask, what to look for and how long to spend, plus warm-ups, worked examples, guided practice, quick checks and answer-key slides
• Student handouts (usually two pages) and exit tickets, with every problem worked out in the answer key
• Editable Word and PowerPoint files, plus PDFs
• A unit overview, the summative task with a four-level Growing Success rubric, a unit test, and teacher solutions for both

Built for the 2021 Ontario Grade 9 Mathematics curriculum (MTH1W, de-streamed), and easy to adapt for any Grade 9 math class.