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