Standards/k8. Illustrated Standards Count to 100 by ones and by tens.
(see illustrations) Count forward beginning from a given number within the known sequence (instead of having to begin at 1). (see illustrations) Write numbers from 0 to 20. Understand the relationship between numbers and quantities; connect counting to cardinality. When counting objects, say the number names in the standard order, pairing each object with one and only one number name and each number name with one and only one object.
Understand that the last number name said tells the number of objects counted. Understand that each successive number name refers to a quantity that is one larger. Count to answer “how many?” Identify whether the number of objects in one group is greater than, less than, or equal to the number of objects in another group, e.g., by using matching and counting strategies. Compare two numbers between 1 and 10 presented as written numerals. Fluently add and subtract within 5. Recognize area as additive. DownloadAsset. High School Mathematics Extensions. Topics[edit] Supplementary Note: * Means that the chapter is currently under active development by the author.
Introduction[edit] This online textbook is aimed at, but not limited to, 14 to 18 year olds who are interested in mathematics in general. Several interesting topics not covered in the standard high school curriculum of most countries are introduced in this text. The materials presented here can be challenging. From the authors It is our firm belief that math textbooks shouldn't just be a collection of mathematical facts carefully laid out, so the student can open it and cram in whatever formula they have to remember for tomorrow's exam. Also (as it seems fitting): Facts alone are as alike to math as bricks are to a house. Authors & Contributors[edit] A number of persons not listed below have also made important contributions to this book.
Real Numbers and Fascinating Fractions. Geometry for Elementary School. Geometry for Elementary School From Wikibooks, open books for an open world The latest reviewed version was checked on 14 January 2014.
There are template/file changes awaiting review. Jump to: navigation, search Table of contents Feedback Feedback is very important in many topics, especially when writing a book like this. Help Questions & Answers Have a question? Further Reading Geometry Retrieved from " Subjects: Hidden categories: Navigation menu Personal tools Namespaces Variants Views Actions Navigation Community Tools In other languages Sister projects Print/export. American Mathematical Society. PJHTechApps - Home. The 11 Ways That Consumers Are Hopeless at Math. This is your brain on shopping, and it's not very smart Reuters You walk into a Starbucks and see two deals for a cup of coffee.
The first deal offers 33% extra coffee. The second takes 33% off the regular price. What's the better deal? "They're about equal! " The upshot: Getting something extra "for free" feels better than getting the same for less. There are two broad reasons why these kind of tricks work. Here are 10 more ways consumers are bad at math, with an assist from historian and author William Poundstone. (2) We're heavily influenced by the first number. . (3) We're terrified of extremes. People were offered 2 kinds of beer: premium beer for $2.50 and bargain beer for $1.80. In short: We are all Goldilocks. (4) We're in love with stories. . (5) We do what we're told. . (6) We let our emotions get the best of us.
. (7) We're easily made dumber by alcohol, time, decisions. . (8) We're pained by transaction costs. . . . (9) ... but we're weird about rebates and warranties.