Virtual Filing Cabinet
It gets to go first, and have it’s own category: http://msmathwiki.pbworks.com/
Also for SBG info for beginners, go to the SBG wiki: http://sbgbeginners.wikispaces.com/
Take It To The Limit’s virtual filing cabinet: http://tothemathlimit.wordpress.com/stuff-to-keep/
KFouss’s Precalculus’s Virtual Filing Cabinet: http://myweb20journey.blogspot.com/p/precalculus-links-and-ideas.html
[Note for Sam: Last updated 8/10/2011]
***
Algebra II
Number Lines, Intervals, and Sets
@ffeldon’s use of wolfram alpha to investigate real numbers (solns here)
Inequalities
Ms. Cookie’s Real Life Inequality — Phone Plan & Text Messaging
MathsClass’s exercises on 1D inequalities using Geogebra
Polynomials/Polynomial Addition/Subtraction/Multiplication
Kristen Fouss’s awesome Geogebra/Polynomial project
Rational Expressions / Rational Equations
Kate Nowak’s Speed Dating Game with Rational Expressions
Kate Nowak’s Graphical Introduction to Rational Expressions/Equations
Megan Golding’s Solving Rational Equations Project and How Long to Fill The Sink WCYDWT video
Rudy Perez sent me these awesome circuit questions (1, 2) which convert to rational equation questions
@ffeldon’s use of wolfram alpha to investigate rational equations (solns here)
George Woodbury’s little story to help students remember how to add rational expressions
Adam Glesser’s method of adding fractions without like denominators (useful for rational expressions too!)
Mimi’s pointer to NCTM’s worksheet on Rational Equations
Radicals
Kate Nowak’s Radical Operations Row Game (read about them here)
Radical Equations / Absolute Value Equations
@ffeldon’s use of wolfram alpha to study radical equations (solns here)
@k8nowak’s use of “error” to draw the absolute value curve, and talk about how it is a distance – gives it meaning
Sam Shah’s worksheet motivating Absolute Value Inequalities
Factoring / Polynomial Multiplication
Mr. D’s Factoring Quadratics Bingo Game
Mr. D’s Polynomial Multiplication Matching Game
Dan Greene’s Factoring Trinomial’s Game
Math Tales from the Spring’s method of multiplying polynomials: The Claw (is the law)
Maria Andersen’s Factor Pair Block game
Lisa H, at the end of this post, poses a rich question for kids involving factoring (so scroll down already!) — “Find coefficients for x so that you can factor the trinomial x^2 – ?x + 12″
Exponent Rules
Social Mathematics’s Mnemonic for an Exponent Rule
Dan Greene’s Error Analysis Worksheet for Power Equations
David Cox’s introduction to fractional exponents — start ‘em off guessing and thinking and reasoning based on the rules they know
Kate Nowak’s introduction to the cube root function (careful, though, about how to talk about negative numbers under the cube root function)
*A website which helps kids practice their exponent rules.
Maria Andersen’s Exponent Block “tictactoe-esque” game
Function Notation / Function Basics / Composition of Functions / Piecewise Functions / Domain Range
Kate Nowak’s Combining Functions Row Game (read about them here)
Ms. Cookie’s Way to Set Up Piecewise Functions
Sean Sweeny’s Cute Way to Drive Home Function Notation
Dan Greene’s Worksheets on Function Notation, Operations, and Multiple Representations
Sam Shah’s Domain and Range Meters
Kristen Fouss’ Piecewise Function Worksheet that goes with using CBLs
Let’s Paly Math’s Function Machine Game
MizT’s Function Dice! (To practice + – * / and composition of functions.)
Mimi’s Piecewise Function worksheets (basic) and Income Tax as Piecewise Function Unit
Sam Shah’s guided worksheet introducing Piecewise Functions
I Hope This Old Train Breaks Down’s word problems for composition of functions
I Hope This Old Train Breaks Down’s introduction to basic operations (+ – * /) on functions and what it does to their domains (focus on multiple representations)
I Hope This Old Train Breaks Down’s use of a Pringle’s Cannon to model quadratics
Bowman’s way to help kids understand the idea of piecewise functions (make the idea “sticky”)
Amy’s use of color coding for piecewise functions
Lines / Systems
Kate Nowak’s Lines activity
Dan Meyer’s WCYDWT Dan and Chris exploration
Dan Meyer’s WCYDWT Apple iTunes question
Dan Greene’s Method for Students to Remember how to Graph Lines
Jackie B’s Error Analysis in Systems of Equations worksheet
Mr. K’s Slope-Intercept Joke Worksheet
Ms. Cookie’s Trick to Remembering No Slope, Zero Slope, Positive Slope
Sean Sweeny’s Slope Song and Trick to Remembering Undefined Slope
David Cox’s Farming Project (very intensive, would have to seriously commit to doing it) and notes on vertical motion problems (including some applets)
@ffeldon’s use of Wolfram Alpha to investigate linear inequalities and basic lines (solns here)
Dan Greene’s awesome AWESOME worksheets for systems of linear inequalities!
Jackie B.’s systems of equations worksheet which highlights “multiple representations”
David Cox’s geogebra applet with racing cars! to get students thinking about lines as systems
David Cox’s quick check in to see if students “get” lines – by answering the questoin “is the point on the line?”
David Cox’s introduction to the standard form of a line
David Cox’s activity with toy cars to collect data and have students make predictions (data is linear-ish)
Dan Meyer’s Up the Down and Down the Up, and Up the Up and Down the Down, Stairs — exploit linearity?
Matrices
Kate Nowak’s Systems and Matrices Row Game (read about them here)
Sam Shah’s Matrices & Social Networking Worksheet
Optimization Problems
Geogebra applet for the Box Folding Problem
Jackie B.’s contest for who can make the maximum volume for a box class
Complex Numbers
John and Betty’s story motivating imaginary numbers
Megan Golding’s “Complex Number Blackjack”
ThinkThankThunk has his students programming the Mandelbrot Set
Quadratics
Nick Yate’s Quadratic Equation Puzzle
Sam Shah’s Unit on Completing the Square
Sam Shah’s Unit on Linear and Quadratic Inequalities (1D and 2D)
Dan Meyer’s WCYDWT Basketball In The Hoop? exploration
Dan Meyer’s WCYDWT Projectile Motion exploration
Dan Meyer’s WCYDWT EXIF picture
David Cox’s Quadratics Unit and finishing it off with Vertical Motion
Sean Sweeny’s M&M Catapult Part I and Part II
@ffeldon’s use of wolfram alpha to investigate quadratics (solns here)
Ms. Cookie’s basic quadratic equations review worksheet
David Cox’s use of a golf applet to talk about quadratic (and linear) motion
Riley Lark’s use of pendulums to talk about quadratics
Mr. K’s check in worksheets to see if students understood the basics of the graphs of quadratics
KFouss’s Leprechaun Complete the Square “game”
Sean Sweeny’s use of Angry Birds and Geogebra to play with Quadratics
Regressions (Linear/Quadratic)
Kate Nowak’s Cry for Help on Regressions, and the recommendations
Sam Shah’s Pendulum Lab Part I and Part II
Ms. Cookie’s Linear Regression Poster Project (and her projects)
sciencegeekgirl.com’s reminder that correlation is not causation (for correlation coeffient)
I Speak Math’s use of student collected data and mystery guests to do linear regressions
Function Transformations
Sam Shah’s Function Transformation Unit
Sam Shah’s Cheapest Movers Step Function Question
Dan Greene’s Worksheets on Function Transformations
Megan Golding’s Family Functions Scrapbook
Exponential Functions
Kate Nowak’s Exponential Growth and Credit Cards worksheet
Sam Shah’s Exponential Functions Unit
Sam Shah’s Moore’s Law analysis
Sam Shah’s Supreme Court Case which involved Exponential Functions
@ffeldon’s use of wolfram alpha to investigate exponential functions (solns here)
Mr. Anderson’s analysis of Rent-to-Buy
Logarithmic Functions
Kate Nowak’s Logarithm War Cards
Kate Nowak’s use of “Power” to introduce Logs
Sam Shah’s post on Logarithms and the Richter Scale
JD2718′s awesome warm up logic puzzle to get students thinking about logs, before introducing them
@ffeldon’s use of wolfram alpha to investigate logarithms (solns here)
Rebecca Zook’s post on a trick to remember logarithm notation
Riley Lark’s activity involving music/sound to investigate exponentiation and logarithms
Natural Math’s use of family trees to gently introduce the concept and need for logarithms
Mr. Reid’s “loudest sound” analysis (using logarithms)
Julia Tsygan’s method for introducing logs and applications
Kate Nowak’s grounded and concrete introduction to logarithms and log laws
Square Root of Negative One’s logarithm and exponent dominoes game
GL(s,r)’s mnemonic for remembering the log laws
Square Root of Negative One’s “loops” for logs (remembering how to convert between logarithmic and exponential equations)
Brokelyn’s use of logarithms to figure out how loud a concert is going to be (someone make a lesson out of this and post it in your blog!)
Math Mama’s excellent rich task for students who have learned a bit about logs — Building Log Equations
k8nowak and cheesemonkeysf’s translation of Napier’s original text on logarithms
Direct and Inverse Variation
Matthen’s beautiful illustration of the inverse square law using spheres
Statistics
Pat B’s simplistic explanation of standard deviation as the mean distance
Sam Shah’s use of digital cameras to talk about histograms
Pat noticed that the Normal Distribution can visualized by use of a door!
Calculus
CalcDave’s most awesome Calculus Questionnaire, for all students starting calculus
History
Sam Shah’s Who Invented Calculus: A Webquest
SquareCircleZ’s transcription of Newton’s original text on integration
Limits
Sam Shah’s excursion on sin(1/x)
Mr. H’s Comic Guide to when Limits Exist
Think Thank Thunk’s intro to the need for limits (basically, starting fresh with derivatives to motivate limits)
Think Thank Thunk’s use of a radar speed gun to talk about limits and infinitessimals
Sam Shah’s use of limits (and systems of equations) to find all points on a funny looking curve (idea: maybe have students make this drawing first with a few lines… then add more… then add more… then add more… until they see that they need two “infinitely close together” lines to get a point on the curve)
Irrational Cube’s writing prompt for a limiting geometry problem
Continuity
Sam Shah’s post on the Intermediate Value Theorem
Basic Derivatives and Meaning of Derivatives
Built on Number’s story of how the decay of Radium can be used to detect forgeries
Robert Talbert’s investigative packet using Wolfram Alpha to discover basic derivative rules
Think Thank Thunk’s use of Logger Pro to motivate the power rule
Jason Dyer’s Q-bert based lesson on the binomial theorem (needed for the derivation of the Power Rule)
Maria Andersen’s Power Rule Format and Multiple Derivatives card games (page here)
Sean Sweeny’s geogebra applet and investigation on what a derivative is (leading up to limit definition)
I Hope This Old Train Breaks Down’s introduction to average speed (need to have video to analyze)
Sam Shah and Bowman’s backward planned unit on the relationship between limits and rates of change
Bowman’s memory modeling project (deals more with modeling that derivatives, but it gets students think at least a little about rates of change of memory loss)
Product / Quotient Rule for Derivatives
Think Thank Thunk’s activity motivating the product rule (answering: when will you ever have the product of two functions?)
Think Thank Thunk’s note that showing the quotient rule as a consequence of the product rule (he teaches product rule, chain rule, THEN quotient rule
Chain Rule
Sam Shah’s “box method” way to teach the chain rule (scroll down)
Think Thank Thunk’s use of gears to teach the chain rule (I’ve never seen this before! Awesome.)
CalcDave’s Inception Chain Rule
Infinigon’s Chain Rule musings
Sean Sweeny’s song about the chain rule, product rule, and quotient rule to the tune of Cee Lo’s Forget U
Position/Velocity/Acceleration
Dan Meyer’s Graphing Stories
Implicit Differentiation
Think Thank Thunk’s use of conic sections (and rice krispie treat cones) to motivate implicit differentiation
Related Rates
Sam Shah’s “Dos Mocas” related rates problem
Think Thank Thunk’s post on motivating related rates using Torricelli’s Theorem
Sam Shah’s (stolen) Related Rates investigation using Logger Pro and a martini glass
Newton’s Method
Think Thank Thunk’s post on Newton’s Method (via Computer Programming)
Shape of a Graph
SquareCircleZ’s Absorption of Drugs in the Body post
SquareCircleZ’s H1N1 and the Logistic Curve post
Nikki Graziano’s beautiful ”Found Function” photographs and the equations accompanying them
Bowman’s way of helping kids write sign analyses so they make sense and remember meaning
Optimization Problems
Think Thank Thunk’s motivation for Optimization Problems (Lord of the Rings)
A nice but involved optimization problem from I Hope This Old Train Breaks Down (Sam Shah also blogged about the problem here)
Think Thank Thunk’s excoriation of most standard Optimization problems, but he also promotes the use of graphing technologies (because why the heck not?)
Anti-Derivatives
Sam Shah’s Worksheets on Introducing Anti-Derivatives
Maria Andersen’s game called “Antiderivative Block!”
Riemann Sums
Sam Shah’s way of organizing information so that the Riemann Sum is easily calculated
Sam Shah’s analyzing error from Riemann Sum worksheet
Think Thank Thunk’s regular but good way to relate Riemann Sums to integrals
Basic Integrals
Think Thank Thunk’s awesome Race Car game to get students to relate integrals and velocity
Maria Andersen’s way of Teaching Basic Integration using Wolfram Alpha
SquareCircleZ’s use of integration when investigating wealth distribution (and the Gini coefficient)
SquareCircleZ’s Tanzalin Method for easier Integration by Parts (in Stand and Deliver?)
Think Thank Thunk’s introduction of the integral of 1/x
Think Thank Thunk’s introduction to the integral of e^x
Mr. H’s graph from Starcraft 2 on the collection rates of resources for Player 1 and Player 2 (update here)
Think Thank Thunk’s trigonometric substitution
Think Thank Thunk’s parabolic arch question (area under a parabola)
Bowman’s awesome project to help kids understand limits of integration and calculate areas between curves
Dave’s very real way to introduce integration with a speeding question (and the post prompting it)
Fundamental Theorem of Calculus
Rectilinear Motion (with integration)
Dave’s simple but good project on getting students to grapple with rectlinear motion
Volumes (of Revolution/Cross Section)
Ms. Cookie’s Volume of Revolution Project
Ms. Ashton’s Volumes by Cross Section using play-doh and dental floss
Ms. Ashton’s delicious Diet Coke way of setting the stage for Volumes of Revolution
Amy G’s use of cakes to visualize (yummy!) and measure volumes of revolution
Mr. H’s video of paper stacking, but more importantly, he throws up an idea about giving students two paper squares from a pyramid built from squares (say #30 and #180 out of 200 sheets) and have them calculate the volume of the pyramid. Love the simple idea – and wouldn’t take too much to convert into an activity.
Bowman’s method of drawing pictures of volumes of revolutions so kids understand and remember what’s going on
Surface Areas of Revolution
Differential Equations
Think Thank Thunk’s introduction of differential equations via resistance
Taylor and other Series
Avery’s awesome yet oh so simple way of getting students to understand Maclauren series
Projects
Dave’s Open Ended Project in Calculus
Infinigon’s Calculus Projects for the Festival del Sol
OTHER COURSES/TOPICS
Multivariable Calculus
Dave Richardson using skewers and rubber bands to make a hyperboloid model
Adam Glesser’s cute way to remember curl and div
Built on Fact’s short exposition on the Mercator Map and Jacobians
Sam Shah’s Multivariable Calculus Projects for 2010/11
Trigonometry
Translating the graphs of Sine and Cosine using a Geogebra applet
Kristen Fouss’ applications of trigonometry problems
Riley Lark’s way to introduce unit circle trigonometry without all the abstraction (and Kate Nowak’s accompanying Geometer’s Sketchpad and Excel files)
SquareCircleZ’s use of the “equations of time” to motivate the addition of two trig functions
zshiner’s word problems for Law of Sines and Law of Cosines
Square Root of Negative One’s use of clinometers and trigonometry to measure the height of the ceiling
Ms. Fouss’ story of Sinbad and Cosette to remind students the sum of angles formulae
Pat’s beautiful trigonometric relationship with 30 – 60 – 90 triangles
squareCircleZ’s method on how to find the sine of 1degree exactly (good problem for advanced students once they learn sum and difference formulas)
Mimi’s Unit Circle and Wave Function Project (Part I, Part II)
SquareCircleZ’s posting of the movie “two dots” which illustrate trigonometry using triangles using a really classy song (classy with a c, not a k)
Precalculus Topics
JD2718′s post introducing geometric series via tax
Sam Alexander’s post on Conic Sections using Lampshades
@ffeldon’s use of wolfram alpha to investigate sequences and series (solns here)
Mr. D’s use of a dartboard to introduce basic probability
Riley Lark’s activity to get students to question the assumptions implicit in standard probability questions
Sarcasymptote’s use of Applebee’s advertisement to talk about combinations
Riley Lark’s introduction of the Monty Hall problem to talk about probability
John Scammell’s use of Mozart’s Dice Game to hook kids into combinatorics and counting
zshiner’s mnemonic to remember the important information about a graph
Adam Glesser’s alternative way to represent three intersecting Venn diagrams
Jason Dyer’s Q-bert based lesson on the binomial theorem
Riley Lark’s “Painting with Functions” introduction to polynomials and zeros using Geogebra and play
KFouss’s Polynomials Photo Project
Pat B’s beautiful problem that involves special right triangles with infinite series and geometry
Square Root of Negative One’s use of Conic Cards to teach Conics! (and follow up)
Jackie’s investigation of the End Behavior of Rational Functions
f(t)’s videos bringing vector summation to life
Sol’s beautiful proof without words of an infinite sum - rich for class discussion (and what constitutes a proof)
matthen’s nice applet illustrating the pigeonhole principle (kids get it intuitively, but having an illustration helps makes thing “sticky” methinks)
Dave’s activities and a project on vectors
Geometry Topics
Math Teacher Mambo’s Introductory Matching Game activity for Prisms and Polyhedra
Kate Nowak’s “Example-Not an Example” worksheet on circle vocabulary
Dave Richardson’s relationship between hat size and
Megan Golding’s introduction to converse, inverse, contrapositive using Alice in Wonderland clip
Mimi’s Tangram Project for basic angles, areas, and perimeters
A video on parallel lines cut by a transverse – and learning vocabulary
Math Teacher Mambo’s introductory excursion into Spherical Geometry
Mimi’s Mini Golf Project
Mr. Anderson’s virtual scavenger hunt for Triangles
Mimi’s many worksheets on Angles!
Ms. Cookie’s worksheets on parallel lines and transversals
Kate Nowak’s use of the US Dollar to talk about Special Right Triangles
Mimi’s Slopes and Parallellographs
Mimi’s Angle Pair worksheets
Mimi’s Orthocenter Activity/Cutout
f(t)’s Counterexamples in Geometry
Dan M.’s Geometry (parallel lines and angle bisectors) using Origami
Miss Calcul8′s process of getting students to generate formal definition of geometric shapes
Megan Golding’s schoolwide treasurehunt using school blueprints, Geometer’s Sketchpad, and a triangle
Ms. Cookie’s power of CPCTC worksheets
Ms. Cookie’s worksheet on congruent triangles (or not!)
Maria Andersen’s Polygon Capture game
I Hope This Old Train Breaks Down’s post on proofs in Geometry (and a concrete way to teach them)
Math Teacher Mambo’s introduction to basic right triangle trigonometry
Square Root of Negative One’s SOHCAHTOA’s scavenger hunt activity and Proportional scavenger hunt activity
I Hope This Old Train Breaks Down’s worksheet on the algebra behind finding the circumcenter
I Hope This Old Train Breaks Down’s worksheet on the Law of Sines and Cosines
Math Teacher Mambo’s Is this a Parallelogram?
Mimi’s Volume and Surface Area of 3d shapes project
John Scammel’s use of right triangles to make a radical ruler (cool!) – good way to visualize and compare radicals
Mimi’s Unit Circle cardboard toy that she uses with yarn to illustrate arc length, angles, sectors, etc.
Algebra I Topics
Sean Sweeny’s “adding like terms” is like adding bananas technique
dy/dan’s method of introducing scientific notation
cheesemonkey’s activities to help students gain numbersense
Bell Ringers/Ways to Start Class
Ashli Black’s most amazing way to start class and activate prior knowledge, get students to talk, and laugh [genius! genius!]
Amy’s recollections of a chant that was used to start class, which I love but don’t think I could pull off (or could I???)
Group Activities (not based around specific topic)
The Resolute Instructor’s Exam Prep Activities: post 1, post 2, post 3, post 4, post 5
Ms. Cookie’s Blank Math Joke Sheet
Mr. D’s Jenga test prep activity (suggestion: put #s on each Jenga tile, and have packets with questions numbered to match the Jenga tiles)
Ann Gregson’s group-based accountability-for-all review activity
Kristen Fouss’ trasketball game (played by others too!)
Miss Cal.Q.L8′s group activities to break up the monotony (love the balloon pop activity!)
Riley Lark’s roles for students when they are doing group work
Math Tales From the Spring Star Chain review activity
Math Mama’s Risk Your Knowledge Game
zshiner’s Pair Check activity
Amy G.’s Math Dominos game (and here)
f(t)’s Add ‘Em Up game (and Amy G.’s extension)
Miss Calcul8′s 4 color “game” on calling students in a group activity
Amy G.’s Station Review
Sue Van Hattum’s method of getting kids to decide how confident they are when doing problems
I Speak Math’s Math Hunt review activity
Maria Andersen’s Trinomial Activity Game
Math Hombre’s Linear War game (emphasizing comparing slopes, x-intercepts, and y-intercepts)
Kate Nowak’s use of GoodQuestions and clickers/poormanclickers to generate discussion/debate/instigate ARGUMENTS in her classroom
zShiner’s “math hospital” worksheet idea (to illustrate and correct common errors) — not really a group activity but a good activity
I Speak Math’s MATHO (like BINGO) review game
Middle School
Approaching Infinity’s Multiplying and Dividing by 10 mnemonic
Sean Sweeny’s “Rainbow Trick” to dividing fractions by fractions (actually, good all the way up to calculus!)
I Speak Math’s method for “Solving for Y” (in 2 step equations)
Math Teacher Mambo’s worksheets on adding and subtracting integers
David Cox’s method for setting up work problems
I Speak Math’s song and dance to solving multi-step equations


wowzahs… what a collection! Thanks for sharing your finds!
thnx 4 the help on my math report!
Sam,
Great work, as usual, updating this! I come back here often for ideas and inspiration!
Kevin
I am so happy that my mneumonic device for logarithms made it into your virtual filing cabinet! I’m looking forward into checking out more of these ideas. Thanks so much for gathering them all in one place. I totally know what you mean about trying to find links… ;)
Absolutely loving your website. As a newly qualified math/science teacher, I’m finding your blog a terrific resource, and your ideas and enthusiasm most inspiring!
WOW. How did I JUST discover this treasure chest of a page. This is quite the collection!
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