# Virtual Filing Cabinet

[Note for Sam: Last updated 1/2/2013]

# Virtual Filing Cabinets

Our sporadically updated but rich (if you browse) wiki for our MTBoS community

For SBG info for beginners, go to the SBG wiki

Take It To The Limit’s Virtual Filing Cabinet for high school courses, techniques, and great classroom ideas, etc.

KFouss’s Precalculus, Algebra II, and Algebra I Virtual Filing Cabinets

Mr. Kraft’s (Many Topics) Virtual Filing Cabinet

Bowman Dickson’s Calculus and Teaching Strategies Virtual Filing Cabinet

# Algebra II

Number Lines, Intervals, and Sets

@ffeldon’s use of wolfram alpha to investigate real numbers (solns here)

Inequalities

MathsClass’s exercises on 1D inequalities using Geogebra

Sarah’s inequality bingo!

Kristen Fouss’s awesome Geogebra/Polynomial project

Rational Expressions / Rational Equations

Kate Nowak’s Speed Dating Game with Rational Expressions

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)

Adam Glesser’s method of adding fractions without like denominators (useful for rational expressions too!)

Cheesemonkey’s Rational Expression Treasure Hunt

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

Kate Nowak’s use of a numberline to give another understanding to absolute value equations

Factoring / Polynomial Multiplication

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”

Simplifying Radical’s game to teach factoring (and the quantitative results of the game)

CalcDave’s awesome way for students to remember the sum/difference of cubes (not SOAP)

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)

Maria Andersen’s Exponent Block “tictactoe-esque” game

Function Notation / Function Basics / Composition of Functions / Piecewise Functions / Domain Range

Ms. Cookie’s Way to Set Up Piecewise Functions

Sean Sweeny’s Cute Way to Drive Home Function Notation

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.)

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

Mr. H’s staple/stapleremover to illustrate the idea of a composition of a function and inverse … that doesn’t quite work (good question for class: why doesn’t it work?)

enzuber’s two ways to introduce functions

Mimi’s introduction to function composition (using pancakes as a memory/make-it-sticky device)

Sarah’s introduction to functions

Lines / Systems (some of the lines stuff is good for middle school)

Kate Nowak’s Lines activity

Dan Meyer’s WCYDWT Dan and Chris exploration

Dan Meyer’s WCYDWT Apple iTunes question

Jackie B’s Error Analysis in Systems of Equations worksheet

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)

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?

Kate Nowak’s very rich rectangle problem  to have students think about lines, graphs, points.

Kate Nowak’s really simple, really rich line review for students in Algebra II

Mrs. H’s Linear Functions Review Book

I Speak Math’s graphic organizer for lines (useful for Middle School)

Allison Krasnow’s review stations on lines (useful for Middle School)

Math Coach’s post on Slope and the ADA

I Speak Math’s use of foldables for word problems involving lines

I Speak Math’s slope foldable

Mathcoach’s use of bubble wrap (and popping) to get kids to compare slopes/speed of popping (also: related/extension)

Math Tales from the Spring’s simple use of boxes to make systems of equations more “real” and a bit more compelling

Math Tales from the Spring’s Systems of Equations flipbook

I Speak Math’s awesome Barbie Bungee Project (linear equations!)

Infinite Sum’s “What’s the equation of this street on this Google Map?”

Math Tales from the Spring’s linear inequality card sort

Optimization Problems

Geogebra applet for the Box Folding Problem

Fawn Nguyen’s use of popcorn to motivate the box folding problem

Complex Numbers

John and Betty’s story motivating imaginary numbers

Megan Golding’s “Complex Number Blackjack”

ThinkThankThunk has his students programming the Mandelbrot Set

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)

Kate Nowak’s introduction to Completing the Square

Sam Shah’s revised quadratic stuffs (quadratic inequalities, finding the vertex conceptually, angry birds!)

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)

Faun Nguyen’s barbie jumping!

Use this chart to create a good assessment question about linear regressions (and the meaning of coefficients/constants?)

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

enzuber’s visit to the function zoo (and use of geogebra in the classroom)

Exponential Functions

Kate Nowak’s Exponential Growth and Credit Cards worksheet

Sam Shah’s Exponential Functions Unit

Sam Shah’s Moore’s Law analysis

@ffeldon’s use of wolfram alpha to investigate exponential functions (solns here)

Julia Tsygan’s sorting activity for simple and compound interest

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

@ffeldon’s use of wolfram alpha to investigate logarithms (solns here)

Rebecca Zook’s post on a trick to remember logarithm notation

Julia Tsygan’s method for introducing logs and applications

Square Root of Negative One’s logarithm and exponent dominoes game

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!)

k8nowak and cheesemonkeysf’s translation of Napier’s original text on logarithms

Math Teacher Mambo’s list of problems involving logarithm applications

Math Teacher Mambo’s investigation on planet distance and logarithmic scale

Old Math Dog’s update on Kate’s Log Wars

Math Hombre has a twitter discussion on logarithms

How Reddit uses logarithms to calculate how “important” a page is in their page ordering

Direct and Inverse Variation

Statistics

Pat noticed that the Normal Distribution can visualized by use of a door!

I Speak Math’s A Human Box and Whisker Plot (good for Middle School)

Bowman Dickson’s list of where he gets his favorite data from

# Calculus

Broken Airplane’s Android App for collecting motion data (need to find a lesson plan around this! so cool!)

Andrew A.H. Alexander has a way with explanations, and this is his set of pdfs for Precalc and Calc handouts

A beyond eminently decent free calculus textbook with some good problems/short activities

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)

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

Bowman Dickson’s class to identify and cure misconceptions on limits and holes (and Cheesemonkey’s analysis of it)

Continuity

Sam Shah’s post on the Intermediate Value Theorem

Kate Nowak’s post on the Intermediate Value Theorem

Bowman Dickson’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

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)

Spiked Math’s comic reminder that the zero function is also it’s own derivative!

Bownman Dickson’s “Folding Stories” activity for derivatives

Bowman Dickson’s use of drawing to help kids understand conceptually/visually the idea of rates of change (graphs and numbers have concrete instantiations using this idea)

Bowman Dickson’s use of graphing to “discover” the power rule (but not prove it)

MathClass’s foldable for rules of differentiation (including product/quotient/chain rule)

Linearity/Differentials

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

Dave’s introduction to tangent at a point using a video of car dashboard

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

Position/Velocity/Acceleration

Dan Meyer’s Graphing Stories

Frank Noschese’s use of 5 representations to understand a velocity/distance problem

Julia Tsygan’s use of graphing stories to start the year in calculus

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

Dave Martin’s use of related rates to talk about a speed trap

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

Bowman Dickson’s project on concavity and population

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?)

Riley Lark’s beautiful starting place for introducing optimization problems in calculus

Sam Shah’s introductory class on the idea of optimization (without calculus)

Anti-Derivatives

Maria Andersen’s game called “Antiderivative Block!”

Riemann Sums

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

Think Thank Thunk’s introduction of the integral of 1/x

Think Thank Thunk’s introduction to the integral of e^x

Think Thank Thunk’s trigonometric substitution

Think Thank Thunk’s parabolic arch question (area under a parabola)

Bowman Dickson’s integration drawing project using Geogebra (and Dave’s assignment for the same project)

Sam Shah’s investigation (from NCSSM) on wealth inequality — highlighting the calculus concepts of the trapezoidal rule and the area between two curves [exzuberant does the same!]

Exzuberant’s pictures of things being sliced and diced and more (the hallmark of integration)

Fundamental Theorem of Calculus

Amber Caldwell’s awesome calculus wedding, marrying Intragroom with Deriva

Rectilinear Motion (with integration)

Volumes (of Revolution/Cross Section)

Ms. Cookie’s Volume of Revolution Project

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.

Surface Areas of Revolution

Differential Equations

Think Thank Thunk’s introduction of differential equations via resistance

Taylor and other Series

Differential Equations

SquareCircleZ’s use of differential equations to study fish population

End of Year Projects

Infinigon’s Calculus Projects for the Festival del Sol

Bowman Dickson’s end of year projects (and his rubric and reflections after they were over) — examples: packing consultant, math of the pilgrimage, twitter followers, 3D solid modeling (and his awesome geogebra instructions)

# Multivariable Calculus

Adam Glesser’s cute way to remember curl and div

Built on Fact’s short exposition on the Mercator Map and Jacobians

Robert Talbert’s exposition on the origin of the Nabla symbol

Andy Rundquist’s lissajous curve maker! using a record player!

Dave Richeson’s nice counterexample with partial derivatives/maxs/mins

Mr. Honner’s vector fields illustration and wind current illustration site

Pictures of Math’s illustration of a magetetic vector field

Mr. Honner’s slice forms to visualize graphs in 3D

# 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)

Square Root of Negative One’s use of clinometers and trigonometry to measure the height of the ceiling

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)

Kate Nowak’s simple question on radians (which I should put on an assessment!)

Fouss’s trig stations for review (war, dice, row game, etc.)

Ms. Cookie’s challenging clock problem for Precalculus

Infinite Sum’s Inverse Trig War

Tina Cardone’s introduction to the law of sines and cosines

FracTad reminds us to use trigonometry outside — to make it memorable (with clinometers)

Mr. Reid’s use of sonic booms and angle of “cone” to measure speed (inverse trig function)

Square Circle Z’s gentle overview of Fourier Series! (click on Fourier Series Graph)

Kate Nowak reminds us to derive the angle sum identities

# Precalculus

Andrew A.H. Alexander has a way with explanations, and this is his set of pdfs for Precalc and Calc handouts

Probability and Combinatorics

matthen’s nice applet illustrating the pigeonhole principle (kids get it intuitively, but having an illustration helps makes thing “sticky” methinks)

Dave Richeson’s  visualization on False Positives

CalcDave’s reminder that we can study the hunger games with probability (two more articles about it here and here)

Mr. Reid’s Russian Roulette probability question

John Berray’s awesome “Shot at Glory” way to start out a probability unit!

Mathcoach’s introduction to probability, with a brown paper bag

Avery has students analyze games with guiding questions after a unit on probability (and also: yahtzee with two dice!)

Think Thank Thunk’s drake equation!

John Scammell’s use of The Amazing Race and a challenge to talk about possible combinations of flags

Mr. Honner posts Birthday Frequency Distribution… I wonder how a student would go about solving the probability of there being at least 2 people in a room having the same birthday with the actual distribution.

Delta Scape using Pass the Pigs for probability

Series and Sequences

Dave’s great video introducing the concept of geometric sequences

JD2718’s post introducing geometric series via tax

@ffeldon’s use of wolfram alpha to investigate sequences and series (solns here)

Jason Dyer’s Q-bert based lesson on the binomial theorem

Sol’s beautiful proof without words of an infinite sum – rich for class discussion (and what constitutes a proof)

BrainOpenNow’s “box” activity for sequences (linear, non-linear, etc.)

Dan Meyer’s use of a photocopier to introduce the idea of a sequence (geometric!)

Dan Meyer’s skyscraper/domino problem

James Dunseith’s use of excel to teach sequences (see explorations #1 and #2)

Fawn Nguyen’s awesome new site on patterns for sequences/series (also good for any visual pattern questions)

Matrices

Sam Shah’s Matrices & Social Networking Worksheet

CalcDave’s awesome method for multiplying matrices

Polar/Vectors

Proof’s beautiful dynamic illustration of the conversion from rectangular to polar coordinates

Polynomial Analysis and Theorems

KFouss’s Polynomials Photo Project

KFouss’s wonderful “maximize the volume of a box” activity (complete with building the boxes!)

Conics

Sam Alexander’s post on Conic Sections using Lampshades

Square Root of Negative One’s use of Conic Cards to teach Conics! (and follow up)

Math Coach’s use of conics to have students draw pictures (and part II)

Apollonius’s Conics

Rational Functions

# Geometry

Math Teacher Mambo’s Introductory Matching Game activity for Prisms and Polyhedra

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

Mimi’s Angle Pair worksheets

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?

John Scammel’s use of right triangles to make a radical ruler (cool!) – good way to visualize and compare radicals

Ms. Cookie’s worksheet on basic geometry notation/terminology

Kate Nowak’s short but sweet “if you were a geometric object which one would you be and why?” activity

Justin Lanier’s genius method of introducing the idea of “squareness” and interrogating it (which gets kids to investigate perimeter, area, ratios, etc.)

dy/dan’s (well Malcom Swan’s) activity of having students understand the relationship between perimeter, area, and the impossible… probably for a good advanced class?

Kate Nowak’s activity on tilings and polygons

Math Teacher Mambo’s Magic Hand with Transversals

Justin Lanier’s Introduction to Proofs using Formal Systems

Kate Nowak’s plan for teaching Volume/Surface Area

Kate Nowak’s introduction to if/then statements (logic statements)

Faun Nguyen’s way of investigating area using origami

Proof’s the Spiral of Theodorus (pythagorean theorem and triangles)

Proof’s accounting of how the golden ratio is NOT everywhere

Fawn Nguyen’s geometry project (photographs)

Fawn Nguyen’s activity with a person describing a complex geometric shape to another verbally and trying to get the other person to draw it (and her discovery that geometer’s sketchpad would make it go better)

Fawn Nguyen’s dissecting polygons activity

Fawn Nguyen’s awesome use of estimation when talking about volume!

Tina Cardone’s unit on lines and angles and work on parallel lines and transversals

Proof’s visual “proof” of the pythagorean theorem… could lead to a good discussion of whether this truly is a proof or not

Dan Meyer leads us to an interactive applet which gets kids to think about SAS and AAA

misscalcul8’s popsicle stick proofs

Dan Meyer has a beautiful 3 Act on area of sectors

# Algebra I

cheesemonkey’s activities to help students gain numbersense

David Cox’s “unlecture” on having students understand the Standard Form for a line

Mr. D’s “alphabet slope” activity (to test understanding of positive, negative, zero, undefined, or nonlinear slope)

Faun Nguyen’s Always Sometimes Never questions (useful for middle school too)

I Speak Math’s graphic organizer’s way to introduce square roots (with cheesits!)

# Good Problems (that don’t fit)

Justin Lanier’s grid problems

Anand Thakkar’s Bridges of Konigsburg problem (also good for Parent Night or first day of school)

Dan Meyer’s problems on rectangles/areas/perimeters (etc.)

Dan Meyer’s problem to start class (game theory/strategy)

Aperiodical’s “Where should we live?” problem

Epsilon Delta’s good problem on temperature and change in temperature

Tina Cardone’s Fiddle Toy!

Bowman Dickson’s dragon curves

# First Day of School Ideas

Kate Nowak’s “snowball” activity

Bowman Dickson’s way to introduce SBG (using Angry Birds)

BrainOpenNow’s first day of class analyzing data

Approximately Normal’s WAY TO START OUT THE FIRST DAY OF CLASS HANDS DOWN (it is THE BEST)

Megan Hayes-Golding’s first day scavenger hunt

Mathy McMatherson’s first day live-blog

Amber Caldwell’s second day calculator boot camp

# Good Atmosphere Builders/Good Ideas

Bowman Dickson’s belief in normalizing and celebrating mistakes/errors

Cheesemonkey’s use of buttons to promote class atmosphere

John Berray’s Friday slide on an “outstanding student”

enzuber’s error monster!

Riley Lark’s 6 ways of showing respect (and of showing disrespect)

Amy Gruen’s use of spoons to ensure kids have pencils!

Mathy McMatherson’s Wall of Remediation

Epsilon-Delta’s way to introduce interesting math history in her classroom

misscalcul8’s ingenious way to help kids turn words into math (cheesemonkey too)

Bowman Dickson’s Geogebra tutorials

Teaching Statistic’s awesome way to get kids to stop saying “I don’t get it”

Cheesemonkey’s way to help kids with words and math

# 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???)

My Favorite No activity (to normalize mistakes and misconceptions)

# (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!)

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

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)

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

Bowman Dickson’s Math Taboo game (learning vocabulary words, communicating in math)

Amber Caldwell’s great activities using notecards, like having problems of different levels to get students to practice problems, by playing “52 card pickup.” Also, a wonderful activity where students intentionally solve a problem incorrectly on a notecard at the start of class, and then at the end of class, students get a random card and have to correct the mistake.

Bowman Dickson’s use of mini-white boards to facilitate understanding and groupwork

Jason Buell’s use of exit tickets in the middle of class (instead of the end)

I Speak Math’s use of picture frames to “spice up” review stations

I Speak Math’s use of differentiated (colorful) review stations

Teaching Statistics’s list of great classroom activities (getting kids to practice practice practice! in class)

Old Math Dog’s review worksheet with a twist!

Megan Hayes-Golding’s end of year vocabulary task to have kids organize the course in their own way

John Berray’s “You can count” all class activity! For fun, and/or to talk about functions and relations

Sarah’s use of foldables for when it makes sense

Tina Cardone’s favorite review games (bingo, basketball, checksum, sequence, smartboard toss, taboo)

Bowman Dickson’s 3 favorite whiteboarding modes (and his thoughts on why it’s good to whiteboard)

BorschtWithAnna’s use of whiteboards (and a second post!)

# Assessment/Feedback Ideas

Ashli Black’s format for writing quizzes, so she can give good feedback

Cheesemonkey’s first day “grade via this rubric” activity, to show students what you expect

Justin Lanier’s 4 part “extension” to basic skill learnin’

Sam Shah’s formative assessment slips

Megan Golding’s Interactive Notebooks (and part II on grading)

misscalcul8’s use of “summary sheets” at the end of a class

Teaching Statistics’s Algebra II Interactive Notebooks

John Scammell’s core beliefs about assessments

Old Math Dog’s proposed use of homework for meaningful feedback

Julia Tsygan’s summary of scaffolded questions

# Middle School

Approaching Infinity’s Multiplying and Dividing by 10 mnemonic

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

Sarah’s use of floorplans for measuring areas… And then using different flooring tiles to take things a bit further.

John Berray’s “Marshmallow Minute” to teach rates of change and graphing. Awesome idea.

Sarah’s use of messy sorting to talk about how to combine like terms… to make the idea “sticky”

Embracing the Drawing Board’s awesome use of mad-libs to talk about variables and their meaning

Sarah’s use of diagrams/balances for equations (focusing on special case equations with no solutions or all solutions)

1. Dan MacMartin says:

wowzahs… what a collection! Thanks for sharing your finds!

2. ardvark milker says:

thnx 4 the help on my math report!

3. Sam,
Great work, as usual, updating this! I come back here often for ideas and inspiration!

Kevin

4. 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… ;)

5. 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!

6. Pingback: MTT : Geogebra
7. WOW. How did I JUST discover this treasure chest of a page. This is quite the collection!

8. Hi Sam, you have a lot of great resources here, thank you!! I’m looking or more mathy blogs to follow (came here from Math Teacher Mambo). You have quite a blogroll yourself — I could fit in between f(t) and fuck :-) Will have to check out yours after I finish Ms. Cookie’s list. Cheers!

9. I was directed to this page from a commenter on my blog. This is AWESOME! Thanks for compiling it, looking forward to starting my own “virtual filing cabinet” and adding to it as well. =)

10. robertkaplinsky says:

Wow. Thanks for putting this together. So many great resources.

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12. Brand New Teacher says:

Awesome resources.

13. This design is steller! You most certainly know