Index of Classroom Challenges
Classroom Challenges are lessons that support teachers in formative assessment. There are 100 lessons in total, 20 at each grade from 6 to 8 and 40 for ‘Career and College Readiness’ at High School Grades 9 and above. Some lessons are focused on developing math concepts, others on solving non-routine problems.
The Brief Guide for teachers and administrators (PDF) is recommended reading before using these lessons for the first time.
Each lesson is downloadable as an all-in-one PDF to print out, and a supporting PowerPoint presentation.
Finding a Lesson
There are several ways of navigating:
- Use the menu on the left to browse by grade and topic area, or search for a key phrase.
- Go to the Standards tab to find lessons linked to a particular content standard or practice.
- The complete set of lessons is listed below in alphabetic order.
Grade 6
Adding and Subtracting Directed Numbers
Designing 3D Products: Candy Cartons
Evaluating Statements About Number Operations
Evaluating Statements: Consecutive Sums
Interpreting Multiplication and Division
Maximizing Profit: Selling Soup
Modeling Relationships: Car Skid Marks
Optimizing Coverage: Security Cameras
Representing Data With Grouped Frequency Graphs and Box Plots
Representing the Laws of Arithmetic
Representing Variability with Mean, Median, Mode, and Range
Sharing Costs Equitably: Traveling to School
Translating between Fractions, Decimals and Percents
Using Coordinates to Interpret and Represent Data
Grade 7
Classifying Proportion and Non-Proportion Situations
Comparing Data Using Statistical Measures
Comparing Strategies for Proportion Problems
Describing and Defining Quadrilaterals
Describing and Defining Triangles
Designing a 3D Product in 2D: A Sports Bag
Estimating Volume: The Money Munchers
Evaluating Statements About Probability
Increasing and Decreasing Quantities by a Percent
Grade 8
Applying Properties of Exponents
Building and Solving Linear Equations
Classifying Solutions to Systems of Equations
Comparing Fuel Consumption: Buying Cars
Comparing Lines and Linear Equations
Comparing Value for Money: Baseball Jerseys
Defining Lines by Points, Slopes and Equations
Discovering the Pythagorean Theorem
Estimating Length Using Scientific Notation
Finding the Shortest Route: A Schoolyard Problem
Generalizing Patterns: The Difference of Two Squares
Interpreting and Using Data: Setting Taxi Fares
Interpreting Distance–Time Graphs
Matching Situations, Graphs and Linear Equations
Representing and Combining Transformations
Sampling and Estimating: How Many Jellybeans
Solving Linear Equations in One Variable
High School
Building and Solving Complex Equations
Calculating Arcs and Areas of Sectors of Circles
Calculating Volumes of Compound Objects
Classifying Equations of Parallel and Perpendicular Lines
Classifying Rational and Irrational Numbers
Deducting Relationships: Floodlight Shadows
Devising a Measure: Correlation
Evaluating Conditions for Congruency
Evaluating Statements About Enlargements
Evaluating Statements About Length and Area
Evaluating Statements about Radicals
Evaluating Statements about Rational and Irrational Numbers
Generalizing Patterns: Table Tiles
Generating Polynomials from Patterns
Inscribing and Circumscribing Right Triangles
Interpreting Algebraic Expressions
Interpreting Data: Muddying the Waters
Maximizing Profits: Selling Boomerangs
Modeling Population Growth: Having Kittens
Proving the Pythagorean Theorem
Representing Conditional Probabilities 1
Representing Conditional Probabilities 2
Representing Data with Box Plots
Representing Data with Frequency Graphs
Representing Functions of Everyday Situations
Representing Inequalities Graphically
Representing Linear and Exponential Growth
Representing Polynomials Graphically
Representing Probabilities: Medical Testing
Representing Quadratic Functions Graphically
Representing Trigonometric Functions
Solving Linear Equations in Two Variables
Solving Problems with Circles and Triangles
Sorting Equations and Identities
Sorting Equations of Circles 1