Dave'sMathNotations
DAVID MARAINDedicated to Math Teachers Discussions of the what, the why and the how of math instruction from Birth to Infinity
| Platform |  | Pricing | Freemium | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 80 | Subscribers | Read | davesmathnotations.substack.com |
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Latest Issues
Recent posts by this newsletter. Browse the email archive.
2²⁰²⁵ - 2²⁰²⁴ - 2²⁰²³ - ... - 2³ - 2² - 2= ? Just a simple pattern? Other strategies?
Dave'sMathNotations is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.
Sally has 90 different seashells. She has three baskets labeled A,B and C. In how many ways can she distribute them to have 30 seashells in each basket? And if the baskets were unlabeled? Setup only!
Those of you who enjoy writing large numbers have fun! Set up only means to use combinations notation like C(5,2) to represent the number of combinations you can make from five objects choosing two at a time: 5!/(3!2!) = (5∙4)/(2∙1) = 10. I...
BE WARY OF "WAKEUP" CALLS FOR EDUCATION
Supporters of privatization are using teacher preparation reports like those from the National Council on Teacher Quality (NCTQ) to push for educational policy changes. It’s worth noting that NCTQ was founded by the conservative think tank ...
1,3,5,... WHAT IS THE AVERAGE OF THE 1st 2025 POSITIVE ODD INTEGERS? WHAT WILL BE THE ANSWER IN 2026?
GR5+: PATTERNS, GENERALIZATIONS, CONNECTIONS, REASONING
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Authors
The writers behind this newsletter.
Retired math educator; Math supervisor, math consultant; writer of math problems that develop critical thinking for over 50 years. Here you will see math explorations, my thoughts on math education, pedagogy in particular.
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