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EngageNY
Advanced Factoring Strategies for Quadratic Expressions (part 2)
What do you do with a difficult-to-factor quadratic expression? This lesson provides the answer. Pupils learn a grouping strategy to help factor trinomials. When guess and check seems too tedious, this method is the "works every...
Curated OER
Use Guess and Check to Solve Math Problems
In this problem solving worksheet, young scholars read about using the guess and check strategy for solving math word problems. They use the strategy to solve 8 problems. They read about the working backwards and using visuals as problem...
Curated OER
Problem Solving
Second graders practice problem solving strategies. In this problem solving lesson, 2nd graders use strategies such as guess and check, acting out, drawing pictures and looking for patterns to solve problems. Students work in groups to...
EngageNY
Solving a Linear Equation
Solving an equation is the art of creating simpler equivalent equations using properties of equality. Here, classes see that solving an equation is not always as easy as guessing. The lesson presents linear equations that scholars must...
West Contra Costa Unified School District
Factoring Quadratic Expressions
Factor in different strategies in a lesson for factoring quadratics. Young mathematicians first create tables and area models to factor quadratic trinomials into two binomials by guess and check. Learners then investigate how they can...
Alabama Learning Exchange
Estimation Station: Why Estimating is Better than Guessing
Youngsters discover the difference between estimating and guessing. They estimate how many items are contained in a jar as they read a story. After the story, pupils discover the differences between estimating and guessing and create a...
Curated OER
Life is Full of Problems
Pupils use the problem solving strategy of guess and check to investigate math word problems. They determine which problem solving strategy or strategies would work best in problem situations.
Missouri Department of Elementary
Color Your Destiny
Class groups bring feeling words alive by creating a poster that illustrates with images and colors, but not words, the feeling conjured by the word. The posters are then combined into a mural for the classroom wall.
Curated OER
Number Sentences
Fifth graders become familiar with problem solving strategies of guess and check and working backwards. They demonstrate the basic concepts of addition, subtraction, multiplication, and division using a math sentence.
California Mathematics Project
Treasure Beneath the Sea
Explore the geometry of treasure hunting! Learners use geometry to design a treasure recovery strategy. The objective is to create a design that minimizes the amount of work required. Budding mathematicians use properties of triangles as...
Curated OER
Problem-Solving Strategies in Word Problems
Students examine how to determine which strategy to use to solve word problems. In this word problem strategy instructional activity, students listen to a lecture on the process of using different strategies to solve math problems. They...
Curated OER
Fraction Problem Solving Process
Help your charges solve a variety of fraction and skip counting problems using a problem solving process. As a class they work through a fraction problem step-by-step, and discuss a real-life connection to the problem. Students then play...
Curated OER
The Trash We Pass
Where does our garbage go? What is the difference between a recyclable and non-recyclable item? Pose these important, but often overlooked, questions to your class and invite them to consider the lasting and damaging effects of the...
Curated OER
More Pizzas and Things
Students are introduced to the problem by playing a guessing game of "I am a number, which is half of 6 and 6, what am I?" They explain their answers and see if anyone else had an alternate solution checking for reasonableness.
Curated OER
The Envelope Guessing Game
Students work with a partner by using the symbol bracelets from lesson #1. They that has the number #1 look at the object keeping it hidden from student #2. Student number 2 then ask questions in order to determine the qualities and...
Curated OER
Number: Rounding Off and Approximating
Young mathematicians access a website that leads them through three activities that enable them to practice their rounding and estimation skills when it comes to numbers and math word problems. There is also a very good worksheet...
Curated OER
Surface Areas of Prisms, Pyramids and Cylinders
Students identify and use appropriate formulas to find surface areas of solid figures, practice using formula sheet to solve textbook problems, construct solid figures of given surface area using TABS+ software program, and use Internet...
Curated OER
CATCH, TAG and RELEASE
Young scholars apply estimation strategies for problem-solving purposes. They become familiar with one aspect of a marine biologist's work.
Curated OER
Problem Solving: Steps and Strategies
Middle schoolers explore the concept of problem solving strategies. In this problem solving strategies lesson, students discuss methods for solving problems such as re-reading a problem, stating the facts, drawing a picture and so on....
Curated OER
The Learning Book (Part 2)
First graders examine and discuss the skills needed to be an effective learner. They sing "The Learning Song" to the tune of London Bridge is Falling Down, and complete a Learning Book activity sheet. Each student draws a picture of the...
EduGAINs
Solving Linear Equations
To find x, you have to get it by itself, correct? Individuals solve a linear word problem and share their solutions with others that solved the problem in a similar fashion. They then complete a self-assessment on how they feel about...
Curated OER
Not So Snappy 2
In this math worksheet, learners learn to use problem solving strategies such as making a list, guess and check, working backwards and drawing a diagram. Students read and solve 6 sentences.
Curated OER
Pigs, Goats and Sheep
Student are able to devise and use problem solving strategies to explore problems systematically and mathematically. They also form and solve various types of equations. This lesson plan requires some prior knowledge of equations.
Curated OER
5c And 9c Stamps
Fifth graders devise and use problem solving strategies to solve a post office math problem. They describe what it means for a sequence to carry on infinitely, identify patterns in linear combinations of numbers, and discuss the amounts...