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Math Central - Welcome!

Math Central - Welcome!

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5 Ways to Make Fact Fluency Fun - One Stop Teacher Shop As teachers, we know how important it is for students to know their math facts fluently. Without this skill, it is difficult for them to learn higher level math concepts. The best way for student to learn these facts is to practice, practice, and practice. Unfortunately, students don’t always want to do what is best for them. Free Math Textbooks Free textbooks (aka open textbooks) written by knowledgable scholars are a relatively new phenomenon. Below, find a meta list of Free Math Textbooks, part of our larger collection 200 Free Textbooks: A Meta Collection. Also see our online collection, 1200 Free Online Courses from Top Universities. Abstract Algebra: The Basic Graduate Year by Robert B. Ash, University of IllinoisAbstract Algebra: Theory and Applications by Thomas W.

Exploring Parabolas:  y = ax^2 + bx + c Exploring Parabolas by Kristina Dunbar, UGA Explorations of the graph y = ax2 + bx + c Graphing Calculator Untitled Graph Create AccountorSign In Important changes to our Terms of Service! Undo Learn more π functions

During a recent conversation on Twitter with @MichaelT1979, we were asked to recommend our top free apps for English and Maths for students to download and use over the summer. We use these apps every week and they make fantastic free additions to your iPad app portfolio. We would recommend that you also check out Part 1 of this mini series – Our Top 3 Free iPad Apps for English Our Top 3 Free iPad Apps for Maths Presented in no particular order: 125 Great Science Videos: From Astronomy to Physics & Psychology Astronomy & Space Travel A Brief, Wondrous Tour of Earth (From Outer Space) – Video – Recorded from August to October, 2011 at the International Space Station, this HD footage offers a brilliant tour of our planet and stunning views of the aurora borealis.A Universe from Nothing – Video – In 53 minutes, theoretical physicist Lawrence Krauss answers some big enchilada questions, including how the universe came from nothing.A Year of the Moon in 2.5 Minutes – Video – The Lunar Reconnaissance Orbiter has been orbiting the moon for over a year. The footage gets compressed into 2 slick minutes.A Day on Earth (as Seen From Space) – Video – Astronaut Don Pettit trained his camera on planet Earth, took a photo once every 15 seconds, and then created a brilliant time-lapse film.Atlantis’s Final Landing at Kennedy Space Center – Video – After more than 30 years, the space shuttle era comes to a close. Video runs 30 minutes. Physics

Denise Gaskins' Let's Play Math Let’s Play Math blog > Internet Math Resources > Math Adventures for All Ages Activities, puzzles, games, discussion-starters, and more. These sites don’t fit into a grade-level pigeonhole, but allow people of all ages to play with math together. Cut the Knot Interactive: “Mathematics Miscellany and Puzzles,” one of my all-time favorite sites. Simplifying Radicals: Solving Systems of Equations: Foldable Booklets *Update* (1/2/14) - Some people are having difficulties with the download below. Try this one instead. What you see here are little booklets with tabs. One each for solving systems by graphing, substitution, and elimination. No staples or glue required to make these. See how....

Mathematics -    THE POSITIVE ENGAGEMENT PROJECT Concept Learning Bricks are foundational vocabulary terms and concepts, designed for multi-sensory learners, that students need to master before they can apply the actual concepts to other areas. Each Concept Learning Brick is organized with a question, answer, physical gesture movement, concept examples, and picture to represent the academic term. The image on the card, associated memory gesture, and vocabulary definition allow students to see, hear, say, and do so much more with these crucial terms in a way that is fun and engaging. Over 220 concepts are available! Acing Math (One Deck At A Time!) is a collection of math games ranging from Kindergarten to the upper elementary grades, using only an ordinary deck of playing cards.

Where The Wild Fractions Are: The Power Of A Bedtime (Math) Story : NPR Ed Parents who are uneasy about their own math skills often worry about how best to teach the subject to their kids. Well ... there's an app for that. Tons of them, in fact. Cone Construction Calculator A cone is constructed by taking a circle sector of radius L and angle θ and joining the two straight edges together. And any cone without a closed base can be formed back into a circle sector by cutting a straight line from the nape to the base and flattening the resulting figure. If you are given L and θ, you can plug these values into equations to find the height (H) and base radius (R) of the corresponding cone. Likewise, if you are given H and R, you can plug these values into equations to find L and θ. These formulas are explained below the diagrams. You can also use the conventient calculator on the left to find H and R or L and θ.

Math Teaching Strategies: The Language of Math One of the best math teaching strategies is teaching math concepts through the use of math word walls. It really is all about the words, I have discovered, and teaching the language of math is critical to teaching math concepts and procedures. I honestly don't think I could ever teach math without a word wall ! We have time every day for reviewing the words, and it is the most helpful strategy I know for teaching vitally important math terminology. Wall words should also be used to support reading since reading is the most important skill children learn in school. Favorite Math Word Wall Activities

Numbers – Visualizations I have several references in various places on this blog to some great visualizations. Time to put them all together! Jeffrey Ventrella’s Composite Number Tree From Jeffrey Ventrella this wonderful Composite Number Tree – I have used this successfully with many students. It makes a great starter. Students can work out themselves how the tree is being formed and comment on any patterns they notice. Arc Length part of the circumference First i'll cover some arc definitions, alternatively you can jump straight to how to find arc length. Arc definition: A section of the circumference We would call this arc AB, after it's endpoints