Curated OER
Teach Students a Range of Problem-Solving Strategies
Arming students with a multitude of strategies will help them meet their math challenges.
New Zealand Ministry of Education
Addition and Subtraction Pick n Mix
Teach your class how to mentally solve whole number addition and subtraction problems using compensation from tidy numbers including equal additions. They use appropriate recording techniques and predict the usefulness of strategies for...
Kentucky Department of Education
Multi-Digit Multiplication Strategies
There is more than one way to solve a multiplication problem, and many learners find that the lattice multiplication method can be a helpful one. Fourth graders take an initial formative assessment before working in groups of two or...
Curated OER
Working Backwards
Sixth graders make up their own math problems. There is only one restriction. That is, the answer has to be the one you are going to give them in a sealed envelope. The problems that they make up can be anything they like. Let Students...
Curated OER
The Clumsy Tiler N (Metric)
Students explore patterns and geometric sequencing. Students devise and use problem solving strategies to explore situations mathematically. Students solve real life problems. They demonstrate, with cardboard pieces, fraction and...
Curated OER
Addition/Subtraction Strategies
Third graders recall all their addition and subtraction facts to 20. They use the relevant number strategy with whole numbers. Students are taught place value in relation to decimals, and identify 'which decimal is larger.' They...
Curated OER
Well,Well!
Second graders explore and solve a math word problem that involves a series of single digit additions and subtractions. They brainstorm ways to solve the problem, independently solve the problem using drawings, and discuss the various...
Curated OER
What to do with Malus-domestica, Cultivated Apples?
Students take on the roles of apple farmers. In this Arizona agriculture lesson, students explore the concepts of supply and demand as they role play apple farmers who create marketing campaigns when supply outweighs demand.
Curated OER
Dominoes
Fourth graders solve a dominoes word problem, calculating all the possible outcomes for a sequence of events. They discuss the problem, apply counting strategies, create a tree diagram, and write an explanation of how they solved the...
Curated OER
Robinson Crusoe: The Original "Survivor"!
Fourth graders read and analyze Robinson Crusoe by Daniel Defoe, and participate in problem solving activity similar to television show, Survivor. Eight lessons on one page.
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Clap, Pat, Click
First graders practice the art of skip counting to help them find the answer to problems involving equal groups. They are encouraged to make the link between "whisper" counting with body percussion and solving multiplication facts.
Curated OER
Using "Why Mosquitoes Buzz in People's Ears" to Teach Cause and Effect
Students discuss cause and effect relationships and the chain reaction involved before listening to the story "Why Mosquitoes Buzz in People's Ears". Students create flow charts to show the chain reactions of causes and effects in the...
Curated OER
Doing The School Run
Pupils explore finding the percent of a numbers. They survey their peers to determine modes of transportation used in getting to school. Afterward, students organize information and create graphs and charts. They explore alternative...
Curated OER
Multiplication and Division Pick 'n' Mix 2
Fifth graders practice a wide range of strategies for solving multiplication and division problems with whole numbers and decimal fractions. They interact with operations on decimals, relevant size and place value of decimals to three...
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Pigs and Ducks
Second graders use multiplication to solve problems. They use the multiplication facts for 2 and 4. Students combine operations to solve the problem and they devise and apply problem solving strategies.
Curated OER
Rows of Numbers
Students generate patterns from a structured situation, find a rule for the general term, and express it in words and symbols. They also devise and use problem solving strategies in a systematic way.
Curated OER
Red is the Word!
Through the use of stories, artwork, and the KidPix program, youngsters explore the color word red, and engage in activities around the word. Teaching kindergartners about the color words can be so much fun. This could be adapted for any...
Curated OER
Sharing More Lollies
Students examine the math problem, think about it and discuss with their classmates. They work on the rest of the problems in pairs using problem solving strategies and fractions.
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Basketball Caps
Students work on a problem, individually or in pairs. They are asked questions that focus on average. They discus that the average number represents an equal redistribution , rather than just being able to state the rule. They write...
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Pizzas And Things
First graders problem solve using the concepts of doubling and halving numbers as previews for finding multiples and working with fractions. They determine how to find half of a set of objects and work with sums up to 16. They work with...
Curated OER
How Long Does It Take?
Students investigate the lengths of time various activities take and calculate how long is spent on these activities in a week. They complete a worksheet for each activity that is timed, and calculate lengths of time for simulated...
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Up We Go
First graders examine the use of number lines in problem solving situations in this series of lessons. They participate in activities in which they move forward and backward on number line on the playground before doing paper and pencil...
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The Part-Adder 2
Third graders use mental-math strategies to solve two-digit plus two-digit addition problems. They observe and discuss online demonstrations, solve word problems as a class, and independently solve problems and describe their solutions...
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The Three Cold Kittens
Students solve a math word problem involving repeated addition. They identify the important information in the problem, brainstorm ways to solve the problem, and solve the problem and discuss the solution as a class.