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```Math Tools Newsletter
September 30, 2013 - No. 124
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Reactions to the New Look of our Newsletter
Last month we started using a new format for our Math Tools Newsletter.
We welcome your opinion - let us know what you think of our new format.
Email us.

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Announcements

Our Book is Here!
Powerful Problem Solving: Activities for Sense-Making with the Mathematical
Practices Our focus on sense-making and communication in our Problem
Solving Activity Series is so important, we wrote a book about it! Authored
by Max Ray, this book gathers what we've learned about helping students
become proficient problem solvers, focused through the lens of the
Common Core Standards for Mathematical Practices.

Companion Website
With the book's publication, we've unveiled an accompanying website.
Whether you've purchased the book or not, watch our free YouTube clips
of Max and the rest of the Forum team as we use the Problems of the
Week (PoWs) and the many activities from Powerful Problem Solving.

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Featured Resources
As you browse the catalog, please take a moment to rate a resource,
comment on it, review it -- join an existing conversation, or start
a new discussion.

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Tools

Desmos Graphing Calculator - Desmos
Graph functions, plot tables of data, evaluate equations, explore
transformations, and more.

Gold Coin Game - Laurel Pollard
Divide the coins evenly between all the Leprechaun pots.

Apples and Oranges 1 Decimal - Maurici Carbó
This application is a basic tool for learning algebra. Users try to solve
a system of linear equations with two equations and two unknown
variables. It is based on the same problem used in the free app Adding
Apples and Oranges, where only integers are used. This new program
now works externally with decimals. There is a video that can be used
as support material showing Gauss-Jordan, graphic approach, two
weighing scales, Cramer's rule, and inverse matrix.

Simple Calculator - Luis Perez
A simple free online calculator. Perfect for cases where you don't need
advanced features, like when you are doing simple math or working
with a calculator for the first time.

Gemtactix - Time Tracer Limited
Gemtactix is a free tactical and strategy board game based on arithmetic
skills. It enables one to practice quick mental addition and to apply
tactical thinking at the same time. Win the game by moving your craft
around to capture enough of the opponents' gems to stop them from
capturing your gems. The game ends when a player cannot capture
anymore gems; the winner is the one with the most gems. There are
three levels of play vs the Galactic Control Intelligence Unit. After a set
number of wins in each level, one gains an achievement award as proof
of ones' skills.

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Lesson Plan

Lesson Plan: Numberbender 2.0 - Peter Esperanza
This is a website that contains worksheets presentations and video
tutorials on algebra 1, algebra 2, precalculus (trigonometry), AP Calculus,
and AP Statistics.

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