Yummy Math
More Chocolate Candy?
Everyone knows that candy is the best part of any holiday—but which holiday's candy gives you the most bang for your buck? Analyze a chocolate heart, a chocolate bat, and a normal piece of chocolate to decide which piece of candy has the...
Curated OER
Analytical Problem Solving
High schoolers explore about propagation of error in calculations using experimental data. They develop their weighing and pipetting techniques. Students explore the following terms: Standard deviation and relative standard deviatin....
Illustrative Mathematics
Three Composing/Decomposing Problems
Practice composing and decomposing numbers in base-ten using three word problems. Each problem presents a different scenario requiring learners to explain their thinking, find the number of ones, and find out different ways to make a...
Willow Tree
The Pythagorean Theorem
There isn't a more popular geometry formula than the Pythagorean Theorem! Learners understand the special side relationships in a right triangle. They use the Pythagorean Theorem to find missing sides and to solve problems. They begin...
EngageNY
Ferris Wheels—Using Trigonometric Functions to Model Cyclical Behavior
Have class members going in circles as they model the path of a Ferris Wheel using trigonometric functions. Building on the previous lesson in this series on transformations, learners use trigonometric functions to model wheels of...
EngageNY
Solving General Systems of Linear Equations
Examine the usefulness of matrices when solving linear systems of higher dimensions. The instructional activity asks learners to write and solve systems of linear equations in four and five variables. Using matrices, pupils solve the...
Coloring Squared
Baseball Player Mystery Puzzle
After solving each multiplication sentence square, pupils color the numbers according to the key. What does the mystery picture make? Class members take a swing at problem solving to find out.
Flipped Math
Unit 2 Review: Create and Solve Equations and Inequalities
Start with the basics. Pupils work through a review of the unit on equations and inequalities. Learners begin with solving equations and inequalities with no context, move on to problems that involve a context, and finish with a...
Illustrative Mathematics
Margie Buys Apples
One of the most common, everyday applications of math is dealing with money. This single problem calculating how much change Margie receives is more involved than it appears at first glance. An understanding of how fractions and decimals...
Curated OER
Balls & Hoops : Fun with Balls and Tubes
Students race to keep these balls rolling. In this early childhood physical education lesson, students experiment with cause and effect as they work with different heights of cardboard tubes.
Curated OER
Using Known Facts to Multiply and Divide Mentally
Building strong mental-math skills requires learners to have a strong number sense. They practice multiplying two and three-digit numbers in their heads using estimation or approximation. They estimate or round each number and then...
Curated OER
Doubling and Halving
A cute square-headed robot is here to help your class understand doubling and halving. Numbers go in his head and come out his ear doubled. Those same number then go in his ear and come out his head halved. This is a great way to show...
National Park Service
A Peace Park
Piece together American and Canadian culture by learning about peace parks! Scholars discuss differences between Waterton Lakes National Park and Glacier National Park as a group. The newly-informed pupils answers questions about this...
Curated OER
# 12 Using Bottled Water as a Problem Solving Exercise in Chemical Identification
Learners work in groups of two or three, groups are given four unidentified bottled waters in unmarked containers and the chemical characteristics taken from the label on the bottled waters. They devise and carry out a plan to match the...
Coloring Squared
Memorial Day Soldiers
Practice division and celebrate Memorial Day with a color-by-number problem solving instructional activity. The final picture includes a group of Memorial Day soldiers.
Charleston School District
Exploring Linear Functions
What does a graph or equation say about a situation? Lots! The lesson uses the concepts explored in the previous four lessons in the series and applies them to problem solving situations. Learners create an equation from problems posed...
EngageNY
Problems in Mathematical Terms
Whether scholars understand independent and dependent variables depends on you. The 32nd installment of a 36-part series has learners analyze relationships in real-world problems through tables. They determine independent and dependent...
West Contra Costa Unified School District
Average Rate of Change
The concept of slope gets an approachable, yet theoretical, treatment in a comprehensive algebra lesson. The use of functional notation and problem-solving techniques keep the material rigorous, but detailed teaching notes and lots of...
EngageNY
Angle Problems and Solving Equations
Learners build connections between algebra and geometry as they study equation solving. The ninth instructional activity in the series of 28 asks pupils to write equations using angle relationships. After writing equations to model...
Curated OER
Force Problems
Who knew F=MA could determine the force of a free-falling elevator? Give your class this set of thirteen word problems for practice determining force, mass, and acceleration of everyday objects. One question introduces an object in...
Willow Tree
Percent of Change
Your car decreases in value from $20,000 to $17,000. What percent of the value have you lost? Pupils answer word problems by determining the percent of change.
Concord Consortium
All-in-All Problems
Graphs, functions, symbols, and more! Use these strategies to model everything from the flow of a river to the number of cars passing a toll booth. Presented differently but solved similarly, learners consider five different scenarios...
Curated OER
Jon and Charlie's Run
Let's use math to solve an argument. Jon and Charlie are debating about who can run farther, but who is right? That's what your class will figure out as they apply their understanding of fractions to this real-life situation. A simple,...
Curated OER
Mental Math: Subtract Tens, Problem Solving
Subtracting by 10s is easy for your young learners with this worksheet! There are three questions to accompany a bar graph, and there's a space for learners to explain their answers. Encourage them to use mental math here!
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