background preloader

Focus on Math

Facebook Twitter

Understanding Algebra by James Brennan. Sudoku Puzzle - Play Sudoku Online Free. The Order of Operations: PEMDAS. Purplemath If you are asked to simplify something like "4 + 2×3", the question that naturally arises is "Which way do I do this?

The Order of Operations: PEMDAS

Because there are two options! " I could add first: ...or I could multiply first: Which answer is the right one? MathHelp.com It seems as though the answer depends on which way you look at the problem. To eliminate this confusion, we have some rules of precedence, established at least as far back as the 1500s, called the "order of operations". A common technique for remembering the order of operations is the abbreviation (or, more properly, the "acronym") "PEMDAS", which is turned into the mnemonic phrase "Please Excuse My Dear Aunt Sally".

Fractals and Tesselations

xGerms Multiplication. Contents, Interactive Mathematics Miscellany and Puzzles. Since May 6, 1997You are visitor number E66B7E in base 20 Raymond Smullyan, a Mathematician, Philosopher and author of several outstanding books of logical puzzles, tells, in one of his books, a revealing story.

Contents, Interactive Mathematics Miscellany and Puzzles

A friend invited him for dinner. He told Smullyan that his teenage son was crazy about Smullyan's books and could not wait to meet him. The friend warned Smullyan not to mention that he is a Mathematician and that Logic is a part of Mathematics because the young fellow hated Mathematics. Math Posters by Jenny Eather. Mathematical Images: Symmetry. I love finding ‘maths pictures’, and thought it would be nice to start collecting and sharing them.

Mathematical Images: Symmetry

Symmetry is the easiest to begin with, unsurprisingly. Images with simple line symmetry can be great for young (i.e. Y7) pupils to engage with, allowing for discussions about strategies to ‘test’ to how symmetrical an image is and how it could be improved to be ‘more’ symmetrical (this is a good ‘way in’ to using squared paper to complete reflections). Rotational symmetry is fun to explore with an interactive whiteboard, and more practical activities abound (e.g. for homework pupils can draw their own Rangoli patterns, or make patterned wedges that can be repeated to build up a whole shape). Some of my most able Y7 pupils wrote excellent pieces discussing symmetry in buildings and gave their opinions on how symmetry affected the attractiveness of a building or shop display.

Multi-Step Word Problems Worksheet: Challenging. Index for Geometry. Word Problems. This page contains links to free math worksheets for Word Problems problems.

Word Problems

Click one of the buttons below to view a worksheet and its answer key. You can also use the 'Worksheets' menu on the side of this page to find worksheets on other math topics. Addition Word Problems. Math Tutoring & Test Prep - Pre-Algebra, Algebra 1, Geometry, SAT, GRE, GED & many more - YourTeacher.com. Geometry Math Games. Probability. How to solve probability problems Level 1 A hotel has 2 rooms by the seashore and 4 rooms by the golf course vacant.

Probability

If you check in, what are the chances you'll get a room by the seashore? Gertrude C. Folwell School. Sudoku - Play, Share & Print Sudoku puzzles for free! u36824 Easy. What is Sudoku?

Sudoku - Play, Share & Print Sudoku puzzles for free! u36824 Easy

Sudoku is a number-placement puzzle. You start with an almost empty puzzle, which has some of the cells already filled with numbers. Your objective is to fill in the rest of the empty cells. According to the Sudoku rules, a number can appear only once in every row, column, or region (3X3). K12Math. Lesson 12 3 Skills Practice Box And Whisker Plots. Sponsored High Speed Downloads 12-3 Box-and-Whisker Plots - Glencoe Box-and-Whisker Plots (Pages 617–621) NAME _____ DATE _____ PERIOD _____ Example Practice 12-3 Answers: 1. 84 2. 92 3. 70 4.

Lesson 12 3 Skills Practice Box And Whisker Plots

See Answer Key. 5. 22 6. 50, 99 7. 25% 8. The median isn’t necessarily the mean (average) of the upper and lower quartiles ... Basic mathematics. Printable Planners : Scrappin Doodles, Creative Clip Art, Websets & More. More Math Videos! Please Wait...

More Math Videos!

You are here: Videos » More Math Videos AoPS on Facebook Become a fan of AoPS on Facebook, and stay informed about programs and opportunities for outstanding math students. Purplemath. Lesson plans and resources for your SMART Board - SMART Exchange. Online math practice and lessons. Top 10 Instructional Strategies to Improve Math Understanding. The past four years I have been involved with a Math and Science Partnership grant.

Top 10 Instructional Strategies to Improve Math Understanding

One strong component of this grant is the intensive two week professional learning that all participants must attend. Two purposes are always a strong component of this grant. One teachers need to engage in high levels of mathematics to improve their content knowledge and to explore and reflect on their instructional strategies. Ten instructional strategies tend to emerge every year. If we could re-tool every math classroom with these strategies, I have no doubt that the United States would become the strongest country on the globe. #1 Active Engagement #2 Use of Math Tools. Math tutorials, resources, help, resources and Math Worksheets. Mathematics - Assessments. Art of Problem Solving Foundation. Mathematics K-12 Learning Standards. Mathematics Learning Standards In 2011, Washington formally adopted the Common Core State Standards (CCSS) for English language arts and mathematics.

Mathematics K-12 Learning Standards

Assessments for these standards will begin in the 2014-2015 school year. Meanwhile, students will continue to be tested on Washington’s 2008 mathematics standards through the 2013–2014 school year. To be tested starting in the 2014–2015 school year. Surface Area Formulas. (pi = Surface Area Formulas In general, the surface area is the sum of all the areas of all the shapes that cover the surface of the object.

Cube | Rectangular Prism | Prism | Sphere | Cylinder | Units. Home Page. Teachers Primary Pupils Secondary Students. Mathematics - K-8 Strand Documents. Symmetry Worksheets. Mathematical Communication pages of MathDL.

IXL