corpus.blog
56,966 blogs · [ { "id": "01a0c558-6ed1-7271-8aa6-03b1c48ae236", "title": "Open letter to Sal Khan", "url": "https://christopherdanielson.wordpress.com/2013/08/01/open-letter-to-sal-khan/", "published_at": "2013-08-01T19:28:54+00:00" }, { "id": "01a0c558-6ed1-7271-8aa6-03b1c4dc7763", "title": "The oldest man in the world", "url": "https://christopherdanielson.wordpress.com/2013/08/01/the-oldest-man-in-the-world/", "published_at": "2013-08-01T12:00:30+00:00" }, { "id": "01a0c558-6ed1-7271-8aa6-03b1c54ec696", "title": "Units, attributes and four-year olds", "url": "https://christopherdanielson.wordpress.com/2013/07/30/units-attributes-and-four-year-olds/", "published_at": "2013-07-30T12:00:36+00:00" }, { "id": "01a0c558-6ed1-7271-8aa6-03b1c57fed01", "title": "Number and numeration gone wrong", "url": "https://christopherdanielson.wordpress.com/2013/07/28/number-and-numeration-gone-wrong/", "published_at": "2013-07-28T17:16:32+00:00" }, { "id": "01a0c558-6ed1-7271-8aa6-03b1c6741284", "title": "How tall is the hill? [summer project]", "url": "https://christopherdanielson.wordpress.com/2013/07/24/how-tall-is-the-hill-summer-project/", "published_at": "2013-07-24T18:44:22+00:00" }, { "id": "01a0c558-6ed1-7271-8aa6-03b1c7292a52", "title": "Betty’s Pies", "url": "https://christopherdanielson.wordpress.com/2013/07/22/bettys-pies/", "published_at": "2013-07-22T16:31:03+00:00" }, { "id": "01a0c558-6ed1-7271-8aa6-03b1c782d054", "title": "Pattern matching and its role in learning mathematics", "url": "https://christopherdanielson.wordpress.com/2013/07/22/pattern-matching-and-its-role-in-learning-mathematics/", "published_at": "2013-07-22T16:01:26+00:00" }, { "id": "01a0c558-6ed1-7271-8aa6-03b1c85167a4", "title": "Wrapping up the [#algorithmchat]", "url": "https://christopherdanielson.wordpress.com/2013/07/09/wrapping-up-the-algorithmchat/", "published_at": "2013-07-09T17:44:31+00:00" }, { "id": "01a0c558-6ed1-7271-8aa6-03b1c9470df2", "title": "Some lightly edited thoughts about teaching probability", "url": "https://christopherdanielson.wordpress.com/2013/07/01/some-lightly-edited-thoughts-about-teaching-probability/", "published_at": "2013-07-01T18:14:00+00:00" }, { "id": "01a0c558-6ed1-7271-8aa6-03b1c94f0506", "title": "Incommensurate Cheez-Its", "url": "https://christopherdanielson.wordpress.com/2013/06/27/incommensurate-cheez-its/", "published_at": "2013-06-27T16:05:17+00:00" }, { "id": "01a0c561-180e-7200-96f8-8a7fdfe486a3", "title": "Ready for Calculus", "url": "https://christopherdanielson.wordpress.com/2013/06/26/ready-for-calculus/", "published_at": "2013-06-26T21:24:31+00:00" }, { "id": "01a0c561-180e-7200-96f8-8a7fe0d03168", "title": "A few thoughts on integer operations", "url": "https://christopherdanielson.wordpress.com/2013/06/20/a-few-thoughts-on-integer-operations/", "published_at": "2013-06-20T16:13:26+00:00" }, { "id": "01a0c561-180e-7200-96f8-8a7fe0f7a3a2", "title": "Armholes (6-year old topology)", "url": "https://christopherdanielson.wordpress.com/2013/06/12/armholes-6-year-old-topology/", "published_at": "2013-06-12T13:00:28+00:00" }, { "id": "01a0c561-180e-7200-96f8-8a7fe1ea395f", "title": "Summer project", "url": "https://christopherdanielson.wordpress.com/2013/06/10/summer-project/", "published_at": "2013-06-10T13:00:48+00:00" }, { "id": "01a0c561-180e-7200-96f8-8a7fe2643527", "title": "Zero=half revisited", "url": "https://christopherdanielson.wordpress.com/2013/06/05/zerohalf-revisited/", "published_at": "2013-06-05T16:27:56+00:00" }, { "id": "01a0c561-180e-7200-96f8-8a7fe289bfad", "title": "Some more grocery store math", "url": "https://christopherdanielson.wordpress.com/2013/06/03/some-more-grocery-store-math/", "published_at": "2013-06-03T20:47:17+00:00" }, { "id": "01a0c561-180e-7200-96f8-8a7fe2cf69d0", "title": "Division and fractions with a third grader", "url": "https://christopherdanielson.wordpress.com/2013/05/30/division-and-fractions-with-a-third-grader/", "published_at": "2013-05-30T12:00:19+00:00" }, { "id": "01a0c561-180e-7200-96f8-8a7fe3821ec3", "title": "Summertime (or anytime) reading recommendations", "url": "https://christopherdanielson.wordpress.com/2013/05/28/summertime-or-anytime-reading-recommendations/", "published_at": "2013-05-28T14:33:42+00:00" }, { "id": "01a0c561-180e-7200-96f8-8a7fe3b9e386", "title": "Partitive fraction division", "url": "https://christopherdanielson.wordpress.com/2013/05/25/partitive-fraction-division/", "published_at": "2013-05-25T17:00:15+00:00" }, { "id": "01a0c561-180e-7200-96f8-8a7fe4b2bb07", "title": "What is “the standard algorithm”? [#algorithmchat]", "url": "https://christopherdanielson.wordpress.com/2013/05/22/what-is-the-standard-algorithm-algorithmchat/", "published_at": "2013-05-22T15:45:50+00:00" }, { "id": "01a0c568-b85d-7005-9b58-a09dc65c2ce8", "title": "A kindergartener on units [Talking math with your parents]", "url": "https://christopherdanielson.wordpress.com/2013/05/21/a-kindergartener-on-units-talking-math-with-your-parents/", "published_at": "2013-05-21T12:00:19+00:00" }, { "id": "01a0c568-b85d-7005-9b58-a09dc69ef473", "title": "Common numerator fraction division [#algorithmchat]", "url": "https://christopherdanielson.wordpress.com/2013/05/15/common-numerator-fraction-division-algorithmchat/", "published_at": "2013-05-15T19:26:01+00:00" }, { "id": "01a0c568-b85d-7005-9b58-a09dc7918515", "title": "Sharing tostadas", "url": "https://christopherdanielson.wordpress.com/2013/05/08/sharing-tostadas/", "published_at": "2013-05-08T12:00:17+00:00" }, { "id": "01a0c568-b85d-7005-9b58-a09dc85957de", "title": "Reading group [#algorithmchat]", "url": "https://christopherdanielson.wordpress.com/2013/05/06/reading-group-algorithmchat/", "published_at": "2013-05-06T13:33:29+00:00" }, { "id": "01a0c568-b85d-7005-9b58-a09dc8ad9758", "title": "Zero=half", "url": "https://christopherdanielson.wordpress.com/2013/05/06/zerohalf/", "published_at": "2013-05-06T12:00:19+00:00" }, { "id": "01a0c568-b85d-7005-9b58-a09dc9851c6c", "title": "Planting Seeds with Tabitha (or, The Pigeonhole Principle)", "url": "https://christopherdanielson.wordpress.com/2013/05/03/planting-seeds-with-tabitha-or-the-pigeonhole-principle/", "published_at": "2013-05-03T12:00:28+00:00" }, { "id": "01a0c568-b85d-7005-9b58-a09dca2ead00", "title": "Griffin on thirds", "url": "https://christopherdanielson.wordpress.com/2013/04/30/griffin-on-thirds/", "published_at": "2013-04-30T12:00:49+00:00" }, { "id": "01a0c568-b85d-7005-9b58-a09dcabe0e7c", "title": "Are They Really Doubly Stuffed? [#MCTM]", "url": "https://christopherdanielson.wordpress.com/2013/04/27/are-they-really-doubly-stuffed-mctm/", "published_at": "2013-04-27T13:42:09+00:00" }, { "id": "01a0c568-b85d-7005-9b58-a09dcaf6560c", "title": "The comprehensive Oreo database", "url": "https://christopherdanielson.wordpress.com/2013/04/25/the-comprehensive-oreo-database/", "published_at": "2013-04-25T12:00:58+00:00" }, { "id": "01a0c568-b85d-7005-9b58-a09dcbd0ba19", "title": "Dot-to-dot", "url": "https://christopherdanielson.wordpress.com/2013/04/24/dot-to-dot/", "published_at": "2013-04-24T12:00:25+00:00" }, { "id": "01a0c570-1134-7275-b789-aa241e60386b", "title": "Skills practice [#NCTMDenver]", "url": "https://christopherdanielson.wordpress.com/2013/04/23/skills-practice-nctmdenver/", "published_at": "2013-04-23T12:00:41+00:00" }, { "id": "01a0c570-1134-7275-b789-aa241ee14a51", "title": "How many tens?", "url": "https://christopherdanielson.wordpress.com/2013/04/22/how-many-tens/", "published_at": "2013-04-22T12:00:50+00:00" }, { "id": "01a0c570-1134-7275-b789-aa241f1d6553", "title": "What WAS that? or, What was THAT? [#NCTMDenver]", "url": "https://christopherdanielson.wordpress.com/2013/04/21/what-was-that-or-what-was-that-nctmdenver/", "published_at": "2013-04-21T21:54:17+00:00" }, { "id": "01a0c570-1134-7275-b789-aa241faac99c", "title": "The goods [#NCTMDenver]", "url": "https://christopherdanielson.wordpress.com/2013/04/21/the-goods-nctmdenver/", "published_at": "2013-04-21T16:16:38+00:00" }, { "id": "01a0c570-1134-7275-b789-aa242090e097", "title": "Exothermic fauna: A surface area poem", "url": "https://christopherdanielson.wordpress.com/2013/04/13/exothermic-fauna-a-surface-area-poem/", "published_at": "2013-04-13T19:20:05+00:00" }, { "id": "01a0c570-1134-7275-b789-aa2420d9fbd7", "title": "Here’s my plan (subject to change)", "url": "https://christopherdanielson.wordpress.com/2013/04/12/heres-my-plan-subject-to-change/", "published_at": "2013-04-12T14:50:59+00:00" }, { "id": "01a0c570-1134-7275-b789-aa2421d74256", "title": "Rational exponents, third-grade style", "url": "https://christopherdanielson.wordpress.com/2013/04/11/rational-exponents-third-grade-style/", "published_at": "2013-04-12T02:48:16+00:00" }, { "id": "01a0c570-1134-7275-b789-aa24224ffbab", "title": "Manipulatives gone wild!", "url": "https://christopherdanielson.wordpress.com/2013/04/10/manipulatives-gone-wild/", "published_at": "2013-04-10T21:19:42+00:00" }, { "id": "01a0c570-1134-7275-b789-aa2422836401", "title": "Experiments with datasets", "url": "https://christopherdanielson.wordpress.com/2013/04/08/experiments-with-datasets/", "published_at": "2013-04-08T15:16:02+00:00" }, { "id": "01a0c570-1134-7275-b789-aa2422b01d4d", "title": "Peeps math with Tabitha", "url": "https://christopherdanielson.wordpress.com/2013/04/08/peeps-math-with-tabitha/", "published_at": "2013-04-08T12:00:26+00:00" }, { "id": "01a0c57c-ef18-720a-b9a9-419dbc4ecd8c", "title": "Measurement, explored", "url": "https://christopherdanielson.wordpress.com/2013/04/05/measurement-explored/", "published_at": "2013-04-05T19:54:54+00:00" }, { "id": "01a0c57c-ef18-720a-b9a9-419dbcfabf43", "title": "Math Peeps at Play", "url": "https://christopherdanielson.wordpress.com/2013/04/03/math-peeps-at-play/", "published_at": "2013-04-03T21:29:13+00:00" }, { "id": "01a0c57c-ef18-720a-b9a9-419dbdd57a9b", "title": "Beyond the Textbook wrap up", "url": "https://christopherdanielson.wordpress.com/2013/03/29/beyond-the-textbook-wrap-up/", "published_at": "2013-03-29T16:24:13+00:00" }, { "id": "01a0c57c-ef18-720a-b9a9-419dbde28b74", "title": "M&Ms", "url": "https://christopherdanielson.wordpress.com/2013/03/28/mms/", "published_at": "2013-03-28T14:25:45+00:00" }, { "id": "01a0c57c-ef18-720a-b9a9-419dbe632a76", "title": "Beyond the textbook", "url": "https://christopherdanielson.wordpress.com/2013/03/27/beyond-the-textbook/", "published_at": "2013-03-27T05:26:21+00:00" }, { "id": "01a0c57c-ef18-720a-b9a9-419dbea85af0", "title": "What do we need functions for?", "url": "https://christopherdanielson.wordpress.com/2013/03/22/what-do-we-need-functions-for/", "published_at": "2013-03-22T15:47:48+00:00" }, { "id": "01a0c57c-ef18-720a-b9a9-419dbf41eed0", "title": "Reflections on online teaching", "url": "https://christopherdanielson.wordpress.com/2013/03/19/reflections-on-online-teaching/", "published_at": "2013-03-19T18:02:31+00:00" }, { "id": "01a0c57c-ef18-720a-b9a9-419dc0115280", "title": "Pumpkin muffins", "url": "https://christopherdanielson.wordpress.com/2013/03/15/pumpkin-muffins/", "published_at": "2013-03-15T16:05:47+00:00" }, { "id": "01a0c57c-ef18-720a-b9a9-419dc0b89fd9", "title": "The multiplication machine", "url": "https://christopherdanielson.wordpress.com/2013/03/13/the-multiplication-machine/", "published_at": "2013-03-14T02:49:40+00:00" }, { "id": "01a0c57c-ef18-720a-b9a9-419dc1023928", "title": "A place value thought experiment", "url": "https://christopherdanielson.wordpress.com/2013/03/11/a-place-value-thought-experiment/", "published_at": "2013-03-11T14:11:15+00:00" }, { "id": "01a0c58a-e99d-7039-b809-2f86c941928f", "title": "10-minute reading time", "url": "https://christopherdanielson.wordpress.com/2013/03/02/10-minute-reading-time/", "published_at": "2013-03-02T18:00:26+00:00" }, { "id": "01a0c58a-e99d-7039-b809-2f86c971cbc3", "title": "Uncle Wiggily follow up", "url": "https://christopherdanielson.wordpress.com/2013/02/28/uncle-wiggily-follow-up/", "published_at": "2013-03-01T02:22:48+00:00" }, { "id": "01a0c58a-e99d-7039-b809-2f86ca44627d", "title": "Counting brownies", "url": "https://christopherdanielson.wordpress.com/2013/02/28/counting-brownies/", "published_at": "2013-02-28T13:00:21+00:00" }, { "id": "01a0c58a-e99d-7039-b809-2f86ca5ded74", "title": "What does five mean?", "url": "https://christopherdanielson.wordpress.com/2013/02/27/what-does-five-mean/", "published_at": "2013-02-27T13:00:31+00:00" }, { "id": "01a0c58a-e99d-7039-b809-2f86cb1d8210", "title": "Uncle Wiggily", "url": "https://christopherdanielson.wordpress.com/2013/02/26/uncle-wiggily/", "published_at": "2013-02-26T13:00:12+00:00" }, { "id": "01a0c58a-e99d-7039-b809-2f86cbac5be6", "title": "I didn’t really realize how much we need this…", "url": "https://christopherdanielson.wordpress.com/2013/02/25/i-didnt-really-realize-how-much-we-need-this/", "published_at": "2013-02-25T13:00:21+00:00" }, { "id": "01a0c58a-e99d-7039-b809-2f86cc1a7c0b", "title": "Triscuit squares", "url": "https://christopherdanielson.wordpress.com/2013/02/15/triscuit-squares/", "published_at": "2013-02-15T20:58:40+00:00" }, { "id": "01a0c58a-e99d-7039-b809-2f86cc249a17", "title": "We have to call this stuff out", "url": "https://christopherdanielson.wordpress.com/2013/02/13/we-have-to-call-this-stuff-out/", "published_at": "2013-02-13T16:22:53+00:00" }, { "id": "01a0c58a-e99d-7039-b809-2f86cc7360cc", "title": "Picture this", "url": "https://christopherdanielson.wordpress.com/2013/02/12/picture-this/", "published_at": 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"https://christopherdanielson.wordpress.com/2013/01/26/cheese-pepperoni-crackers/", "published_at": "2013-01-26T18:11:01+00:00" }, { "id": "01a0c598-1d54-7296-9ed0-9a83b964d58d", "title": "Minutiae: Five practices artifact", "url": "https://christopherdanielson.wordpress.com/2013/01/25/minutiae-five-practices-artifact/", "published_at": "2013-01-25T17:02:02+00:00" }, { "id": "01a0c598-1d54-7296-9ed0-9a83ba4604a1", "title": "Questioning a premise: Money and decimals", "url": "https://christopherdanielson.wordpress.com/2013/01/24/questioning-a-premise-money-and-decimals/", "published_at": "2013-01-24T18:51:20+00:00" }, { "id": "01a0c598-1d54-7296-9ed0-9a83bb37923e", "title": "Global math department Tuesday night", "url": "https://christopherdanielson.wordpress.com/2013/01/21/global-math-department-tuesday-night/", "published_at": "2013-01-21T14:51:31+00:00" }, { "id": "01a0c598-1d54-7296-9ed0-9a83bba528c5", "title": "Another cool thing…", "url": "https://christopherdanielson.wordpress.com/2013/01/18/another-cool-thing/", "published_at": "2013-01-18T13:00:14+00:00" }, { "id": "01a0c598-1d54-7296-9ed0-9a83bc8272b1", "title": "Defining concavity", "url": "https://christopherdanielson.wordpress.com/2013/01/17/defining-concavity/", "published_at": "2013-01-17T21:23:44+00:00" }, { "id": "01a0c598-1d54-7296-9ed0-9a83bcd7feaf", "title": "Chicken skewers", "url": "https://christopherdanielson.wordpress.com/2013/01/08/chicken-skewers/", "published_at": "2013-01-08T13:00:46+00:00" }, { "id": "01a0e6d9-eeab-703b-ac62-32c4e1503caf", "title": "Syllabus", "url": "https://christopherdanielson.wordpress.com/2013/01/03/syllabus/", "published_at": "2013-01-03T22:07:16+00:00" }, { "id": "01a0e6d9-eeab-703b-ac62-32c4e185a1ef", "title": "Decimal place value v. whole number place value", "url": "https://christopherdanielson.wordpress.com/2013/01/03/decimal-place-value-v-whole-number-place-value/", "published_at": "2013-01-03T15:26:27+00:00" }, { "id": "01a0e6d9-eeab-703b-ac62-32c4e1b11d6d", "title": "Attention Secondary Math Teachers! Help a PhD student out?", "url": "https://christopherdanielson.wordpress.com/2012/12/27/attention-secondary-math-teachers-help-a-phd-student-out/", "published_at": "2012-12-28T02:16:13+00:00" }, { "id": "01a0e6d9-eeab-703b-ac62-32c4e25199e7", "title": "Math Doodles", "url": "https://christopherdanielson.wordpress.com/2012/12/27/math-doodles/", "published_at": "2012-12-27T17:14:45+00:00" }, { "id": "01a0e6d9-eeab-703b-ac62-32c4e2e8c46c", "title": "Best question of the semester", "url": "https://christopherdanielson.wordpress.com/2012/12/18/best-question-of-the-semester/", "published_at": "2012-12-18T22:29:34+00:00" }, { "id": "01a0e6d9-eeab-703b-ac62-32c4e33a95f5", "title": "Christopher dipping toe in water of online education", "url": "https://christopherdanielson.wordpress.com/2012/12/14/online-course/", "published_at": "2012-12-14T18:00:23+00:00" }, { "id": "01a0e6d9-eeab-703b-ac62-32c4e39493b6", "title": "How many weeks until Christmas?", "url": "https://christopherdanielson.wordpress.com/2012/12/03/how-many-weeks-until-christmas/", "published_at": "2012-12-03T13:00:19+00:00" }, { "id": "01a0e6d9-eeab-703b-ac62-32c4e3c664de", "title": "Cookies", "url": "https://christopherdanielson.wordpress.com/2012/11/27/cookies/", "published_at": "2012-11-27T13:00:55+00:00" }, { "id": "01a0e6d9-eeab-703b-ac62-32c4e42644a8", "title": "Playlists", "url": "https://christopherdanielson.wordpress.com/2012/11/20/playlists/", "published_at": "2012-11-20T13:00:24+00:00" }, { "id": "01a0e6d9-eeab-703b-ac62-32c4e458a234", "title": "Tortoise years", "url": "https://christopherdanielson.wordpress.com/2012/11/19/tortoise-years/", "published_at": "2012-11-19T13:00:16+00:00" }, { "id": "01a0e6e7-54c4-73fb-a6a9-bb2238bf8841", "title": "This is what not to do", "url": "https://christopherdanielson.wordpress.com/2012/11/16/this-is-what-not-to-do/", "published_at": "2012-11-16T21:24:46+00:00" }, { "id": "01a0e6e7-54c4-73fb-a6a9-bb2239bc5fe0", "title": "Griffin on Ootsies", "url": "https://christopherdanielson.wordpress.com/2012/11/16/griffin-on-ootsies/", "published_at": "2012-11-16T17:27:17+00:00" }, { "id": "01a0e6e7-54c4-73fb-a6a9-bb2239fb8056", "title": "Dear Target", "url": "https://christopherdanielson.wordpress.com/2012/11/15/dear-target/", "published_at": "2012-11-15T16:30:30+00:00" }, { "id": "01a0e6e7-54c4-73fb-a6a9-bb223af453d0", "title": "CMP3 samples are online", "url": "https://christopherdanielson.wordpress.com/2012/11/09/cmp3-samples-are-online/", "published_at": "2012-11-09T21:11:05+00:00" }, { "id": "01a0e6e7-54c4-73fb-a6a9-bb223b0962b3", "title": "Important Ootsie-related news", "url": "https://christopherdanielson.wordpress.com/2012/11/09/important-ootsie-related-news/", "published_at": "2012-11-09T14:51:33+00:00" }, { "id": "01a0e6e7-54c4-73fb-a6a9-bb223bc7a938", "title": "Tabitha on the well ordering of adjectives", "url": "https://christopherdanielson.wordpress.com/2012/11/08/tabitha-on-the-well-ordering-of-adjectives/", "published_at": "2012-11-08T13:00:32+00:00" }, { "id": "01a0e6e7-54c4-73fb-a6a9-bb223c6044bf", "title": "Help some Minnesotans think something through, won’t you?", "url": "https://christopherdanielson.wordpress.com/2012/11/07/help-some-minnesotans-think-something-through-wont-you/", "published_at": "2012-11-07T22:53:21+00:00" }, { "id": "01a0e6e7-54c4-73fb-a6a9-bb223d5d6be4", "title": "Here’s an “unknown value problem”", "url": "https://christopherdanielson.wordpress.com/2012/11/07/heres-an-unknown-value-problem/", "published_at": "2012-11-07T12:00:49+00:00" }, { "id": "01a0e6e7-54c4-73fb-a6a9-bb223d9b9b81", "title": "Systems of linear equations", "url": "https://christopherdanielson.wordpress.com/2012/11/02/systems-of-linear-equations/", "published_at": "2012-11-02T22:51:48+00:00" }, { "id": "01a0e6e7-54c4-73fb-a6a9-bb223e46d0a2", "title": "Diagrams, week 10 (bonus)", "url": "https://christopherdanielson.wordpress.com/2012/11/02/diagrams-week-10-bonus/", "published_at": "2012-11-02T16:53:13+00:00" }, { "id": "01a0e6f9-0bee-7028-a251-a4e737fbf378", "title": "Diagrams, week 10", "url": "https://christopherdanielson.wordpress.com/2012/11/02/diagrams-week-10/", "published_at": "2012-11-02T16:32:23+00:00" }, { "id": "01a0e6f9-0bee-7028-a251-a4e7388b7902", "title": "Diagrams, week 9", "url": "https://christopherdanielson.wordpress.com/2012/10/26/diagrams-week-9/", "published_at": "2012-10-26T12:00:16+00:00" }, { "id": "01a0e6f9-0bee-7028-a251-a4e738b08bb5", "title": "Diagrams, week 8 (late)", "url": "https://christopherdanielson.wordpress.com/2012/10/23/diagrams-week-8-late/", "published_at": "2012-10-23T21:24:50+00:00" }, { "id": "01a0e6f9-0bee-7028-a251-a4e738f5ac78", "title": "Hierarchy of hexagons follow up", "url": "https://christopherdanielson.wordpress.com/2012/10/19/hierarchy-of-hexagons-follow-up/", "published_at": "2012-10-19T12:00:49+00:00" }, { "id": "01a0e6f9-0bee-7028-a251-a4e739a8dbd6", "title": "What is it like to be Christopher’s College Algebra student?", "url": "https://christopherdanielson.wordpress.com/2012/10/17/what-is-it-like-to-be-christophers-college-algebra-student/", "published_at": "2012-10-17T15:51:43+00:00" }, { "id": "01a0e6f9-0bee-7028-a251-a4e739e9160b", "title": "The hierarchy of hexagons", "url": "https://christopherdanielson.wordpress.com/2012/10/12/the-hierarchy-of-hexagons/", "published_at": "2012-10-12T19:30:21+00:00" }, { "id": "01a0e6f9-0bee-7028-a251-a4e73aaaee78", "title": "Diagrams, week 7", "url": "https://christopherdanielson.wordpress.com/2012/10/11/diagrams-week-7/", "published_at": "2012-10-11T15:34:53+00:00" }, { "id": "01a0e6f9-0bee-7028-a251-a4e73ba2f30b", "title": "Salami-slice math", "url": "https://christopherdanielson.wordpress.com/2012/10/10/salami-slice-math/", "published_at": "2012-10-10T12:00:36+00:00" }, { "id": "01a0e6f9-0bee-7028-a251-a4e73c3f7235", "title": "Kindergarten addition strategies", "url": "https://christopherdanielson.wordpress.com/2012/10/05/kindergarten-addition-strategies/", "published_at": "2012-10-05T12:00:35+00:00" }, { "id": "01a0e6f9-0bee-7028-a251-a4e73cb11c30", "title": "Diagrams, week 6", "url": "https://christopherdanielson.wordpress.com/2012/10/04/diagrams-week-5-2/", "published_at": "2012-10-04T12:00:25+00:00" } ] posts Claim your blog
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christopherdanielson.wordpress.com

2013

Open letter to Sal Khanoriginal ↗
1 Aug 2013
The oldest man in the worldoriginal ↗
1 Aug 2013
Units, attributes and four-year oldsoriginal ↗
30 Jul 2013
Number and numeration gone wrongoriginal ↗
28 Jul 2013
How tall is the hill? [summer project]original ↗
24 Jul 2013
Betty’s Piesoriginal ↗
22 Jul 2013
Pattern matching and its role in learning mathematicsoriginal ↗
22 Jul 2013
Wrapping up the [#algorithmchat]original ↗
9 Jul 2013
Some lightly edited thoughts about teaching probabilityoriginal ↗
1 Jul 2013
Incommensurate Cheez-Itsoriginal ↗
27 Jun 2013
Ready for Calculusoriginal ↗
26 Jun 2013
A few thoughts on integer operationsoriginal ↗
20 Jun 2013
Armholes (6-year old topology)original ↗
12 Jun 2013
Summer projectoriginal ↗
10 Jun 2013
Zero=half revisitedoriginal ↗
5 Jun 2013
Some more grocery store mathoriginal ↗
3 Jun 2013
Division and fractions with a third graderoriginal ↗
30 May 2013
Summertime (or anytime) reading recommendationsoriginal ↗
28 May 2013
Partitive fraction divisionoriginal ↗
25 May 2013
What is “the standard algorithm”? [#algorithmchat]original ↗
22 May 2013
A kindergartener on units [Talking math with your parents]original ↗
21 May 2013
Common numerator fraction division [#algorithmchat]original ↗
15 May 2013
Sharing tostadasoriginal ↗
8 May 2013
Reading group [#algorithmchat]original ↗
6 May 2013
Zero=halforiginal ↗
6 May 2013
Planting Seeds with Tabitha (or, The Pigeonhole Principle)original ↗
3 May 2013
Griffin on thirdsoriginal ↗
30 Apr 2013
Are They Really Doubly Stuffed? [#MCTM]original ↗
27 Apr 2013
The comprehensive Oreo databaseoriginal ↗
25 Apr 2013
Dot-to-dotoriginal ↗
24 Apr 2013
Skills practice [#NCTMDenver]original ↗
23 Apr 2013
How many tens?original ↗
22 Apr 2013
What WAS that? or, What was THAT? [#NCTMDenver]original ↗
21 Apr 2013
The goods [#NCTMDenver]original ↗
21 Apr 2013
Exothermic fauna: A surface area poemoriginal ↗
13 Apr 2013
Here’s my plan (subject to change)original ↗
12 Apr 2013
Rational exponents, third-grade styleoriginal ↗
12 Apr 2013
Manipulatives gone wild!original ↗
10 Apr 2013
Experiments with datasetsoriginal ↗
8 Apr 2013
Peeps math with Tabithaoriginal ↗
8 Apr 2013
Measurement, exploredoriginal ↗
5 Apr 2013
Math Peeps at Playoriginal ↗
3 Apr 2013
Beyond the Textbook wrap uporiginal ↗
29 Mar 2013
M&Msoriginal ↗
28 Mar 2013
Beyond the textbookoriginal ↗
27 Mar 2013
What do we need functions for?original ↗
22 Mar 2013
Reflections on online teachingoriginal ↗
19 Mar 2013
Pumpkin muffinsoriginal ↗
15 Mar 2013
The multiplication machineoriginal ↗
14 Mar 2013
A place value thought experimentoriginal ↗
11 Mar 2013
10-minute reading timeoriginal ↗
2 Mar 2013
Uncle Wiggily follow uporiginal ↗
1 Mar 2013
Counting browniesoriginal ↗
28 Feb 2013
What does five mean?original ↗
27 Feb 2013
Uncle Wiggilyoriginal ↗
26 Feb 2013
I didn’t really realize how much we need this…original ↗
25 Feb 2013
Triscuit squaresoriginal ↗
15 Feb 2013
We have to call this stuff outoriginal ↗
13 Feb 2013
Picture thisoriginal ↗
13 Feb 2013
Problem solvingoriginal ↗
11 Feb 2013
A fun game to playoriginal ↗
11 Feb 2013
Tidbitsoriginal ↗
8 Feb 2013
Guess the temperatureoriginal ↗
1 Feb 2013
Cheese-pepperoni crackersoriginal ↗
26 Jan 2013
Minutiae: Five practices artifactoriginal ↗
25 Jan 2013
Questioning a premise: Money and decimalsoriginal ↗
24 Jan 2013
Global math department Tuesday nightoriginal ↗
21 Jan 2013
Another cool thing…original ↗
18 Jan 2013
Defining concavityoriginal ↗
17 Jan 2013
Chicken skewersoriginal ↗
8 Jan 2013
Syllabusoriginal ↗
3 Jan 2013
Decimal place value v. whole number place valueoriginal ↗
3 Jan 2013

2012

Attention Secondary Math Teachers! Help a PhD student out?original ↗
28 Dec 2012
Math Doodlesoriginal ↗
27 Dec 2012
Best question of the semesteroriginal ↗
18 Dec 2012
Christopher dipping toe in water of online educationoriginal ↗
14 Dec 2012
How many weeks until Christmas?original ↗
3 Dec 2012
Cookiesoriginal ↗
27 Nov 2012
Playlistsoriginal ↗
20 Nov 2012
Tortoise yearsoriginal ↗
19 Nov 2012
This is what not to dooriginal ↗
16 Nov 2012
Griffin on Ootsiesoriginal ↗
16 Nov 2012
Dear Targetoriginal ↗
15 Nov 2012
CMP3 samples are onlineoriginal ↗
9 Nov 2012
Important Ootsie-related newsoriginal ↗
9 Nov 2012
Tabitha on the well ordering of adjectivesoriginal ↗
8 Nov 2012
Help some Minnesotans think something through, won’t you?original ↗
7 Nov 2012
Here’s an “unknown value problem”original ↗
7 Nov 2012
Systems of linear equationsoriginal ↗
2 Nov 2012
Diagrams, week 10 (bonus)original ↗
2 Nov 2012
Diagrams, week 10original ↗
2 Nov 2012
Diagrams, week 9original ↗
26 Oct 2012
Diagrams, week 8 (late)original ↗
23 Oct 2012
Hierarchy of hexagons follow uporiginal ↗
19 Oct 2012
What is it like to be Christopher’s College Algebra student?original ↗
17 Oct 2012
The hierarchy of hexagonsoriginal ↗
12 Oct 2012
Diagrams, week 7original ↗
11 Oct 2012
Salami-slice mathoriginal ↗
10 Oct 2012
Kindergarten addition strategiesoriginal ↗
5 Oct 2012
Diagrams, week 6original ↗
4 Oct 2012
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