Math Websites: Specific Lessons

GOOD SOURCES FOR MULTIPLE LESSONS

• Illustrative Mathematics
  Website that includes shared lessons to illustrate teaching with Common Core math standards. Started by Dr. Bill McCallum, a Common Core author.
• Robert Kaplinsky's Math Lessons
  Some very cool real-world stuff here. Math lessons are sorted by grade.
• OpenCurriculum Mathematics
  Lessons, projects, activities, videos, worksheets & tests that are open-source (from Illustrative Mathematics, Engage NY, Khan Academy, and others). Quality varies widely, but ability to search by CC standards is VERY helpful.
• Common Core Problem Based Curriculum Maps | Geoff Krall (emergent math)
  Sequences of great CC online math lessons.
• Math Teacher Resources from I Speak Math
  Big list of math teaching resources, with pointers to lesson plans, problems, professional development...
• Teacher Resources on Line (UK)

RATIO AND PROPORTIONAL RELATIONSHIP LESSON

• Proportional Reasoning: Hamburger Nutrition
  Graphite "App Flow" describing use of various apps to do free Mathalicious rates/ratios lesson.

NUMBER SYSTEM LESSONS

• Fraction Division via Rectangles | Fawn Nguyen
• Drill Bit Fractions | Yummy Math
  Drill bits are ordered by size, and the denominators of the fractions (up to sixteenths) are given. Find the numerators.
• Long Division from Strip Model | Graham Fletcher
  Really aimed at 4th/5th grade division, but can help make sense of standard algorithm.
• Life on the Number Line - board game for real numbers | Cheesemonkeysf
• sqrt(2) is irrational: Tennenbaum’s proof | Division by Zero
  Proof by contradiction; pretty pictures.

EXPRESSIONS AND EQUATIONS (ALGEBRA) LESSONS

• Central Park: Making Sense of Variables
  A Dan Meyer & Christopher Danielson lesson for early algebra. Students solve one problem, then variations, then move to variables for power and sense-making.
• Charge! | Michael Fenton
  Model the time it takes a cell phone to charge with a linear function... then find out there's a catch!
• Scattergories Style Describing Graphs Game | Sarah Hagan (Math = Love)
  Good practice at identifying features of graphs and describing them with correct terminology. Competitive group game in which teams win for having the highest number of correct and unique descriptions.
• Linear Equation Card Sort | Nora Oswald
  Match cards for y=mx+b, std form, slope-int, graph, table. Editable too!! At this time, card 2 is a bit confusing (needs fractional coefficient filled in, but it reads as "-x").
• Substitution with stars | cheesemonkeysf
  "Training wheels" to help with substitution: write x (or y) on one side of a star and whatever it equals on the other.

GEOMETRY LESSONS

• Stained Glass Circle/A/P/Modeling Problem | Illustrative Mathematics
  Very cool and realistic scenario in which students need to choose a reasonable model and use knowledge of area (especially of circles), perimeter, and numerical calculations. In PPS, can be used in Math 6.
• Rigid Transformations (Grade 8) | Fawn Nguyen
  Ideas for student-created procedures for transformations (create, then do someone else's).
• Box of Clay (Volume and Units) | Joe Schwartz, Exit 10A
  Fantastic post about learning issues and teaching choices involved in a fifth grade lesson about volume and units.
• 3 Act Volume | Tap Into Teen Minds + Lisa Bejarano
  3-act task around predicting relationships between volumes of various 3-D prisms, pyramids, cones, etc.
• Arguing about Shapes (Kate Nowak)
  Great intro geometry lesson (could be used in 7th or 8th grade math also). Stresses finding patterns, sense-making, communication and critique of reasoning, math vocabulary... awesome.
• Proofs of the Pythagorean Theorem | Mathematics Assessment Project (map.mathshell.org)
• Constructions Castles | Cheesemonkey
  Creativity with high-school-level Geometry constructions.
• The Secret of Flowchart Proofs #officesupplies | cheesemonkeysf
  Flow-chart proofs with post-it notes.

STATISTICS AND PROBABILITY LESSONS

• Census at School (US) | American Statistical Association
  Census questions for classes to take, with answer statistics to be compared against other national & international groups. Requires part of a class period for online activities.
• Scatterplots Idea: "Are We Movie Compatible?" | Cathy Yenca
  Fantastic idea for introducing scatterplots and correlation: students rank 10 things in order (here, movies), then compare rankings via scatterplot.
• Are you reflected in the new Congress? | The Guardian
  Enter demographic info (sex, age, etc.) and find out how many members of Congress share it.

LOGIC/PROOF LESSON

• "Words" Logic/Proof Handout | Justin Lanier (ichoosemath)
  Use "rules" to change letter strings, then move to inventing your own rules. Not specifically geometry.