Curated OER
Matchstick Patterns
Third graders investigate patterns made using matchsticks and tiles, so it involves them in active studying. The relation between the number of the term of a pattern and the number of matchsticks (tiles) that that tem has is explored...
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Rounding Numbers
Fifth graders demonstrate rounding numbers to a sensible level of accuracy and in context. They discuss rounding numbers for newspaper headlines, complete a table of grocery items that need to be rounded, and observe and demonstrate...
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Negative Magic Squares
Magic squares are interesting objects in both mathematics proper and in recreational mathematics. So they are objects that children should have heard about and experienced. The problems in this sequence give students the opportunity to...
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Target 15.287
Fourth graders participate in a math game in adding numbers from one up to ones of thousands or decimal numbers from thousandths to ones with the roll of a pair of dice in advanced additive to advanced proportional stages six and eight....
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The Sexton and the Compass
Students evaluate how movement patterns create and affect interdependence. They analyze the interactions within and between regions and engage in artistic inquiry, exploration, and discovery in collaboration with others. They design...
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Linear Graphs and Patterns
Fifth graders find pairs of whole number co-ordinates and use them to draw graphs in problem contexts. They find and interpret the all meaningful pairs of whole number co-ordinates from graphs.
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X Marks the Spot
Fourth graders use games and puzzles to explore co-ordinate systems and their uses. Students are given the opportunity to invent their own systems by locating counters on a sheet of paper and by finding the dead center of a set of objects.
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Calculator Count to 1000
Learners develop an understanding that large numbers are made up of smaller ones. They develop multiples by skip counting with a calculator to 1000. They share their lists and patterns.
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Equal Additions
Students explore the relationships between numbers through the use of "equal addition" and "equal subtraction." Through the use of number sense, they are able to computer addition and subtraction problems mentally. Individually,...
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Reversing Numbers
Second graders solve a math word problem involving the addition of two digit numbers. They discuss the problem as a class, independently explore the problem, and discuss as a class the solution and how they organized their reversed...
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What is s and t?
Students formulate and solve various types of equations. They become familiar with different types of patterns and apply the knowledge to solving mathematical problems from analyzing them.
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Little Magic Squares
Young scholars and teacher talk about arrays of numbers like the ones in A Square of Circles. They check to see that the rows all have the same sum; that the columns all have the same sum; and that the diagonals have the same sum.
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Deci-order
Fourth graders play a game to practice their decimal number ordering skills. They use their knowledge of the number system to create the biggest decimal number. Students are dealt 3 cards each with the reminaing cards placed face down...
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Decimal Calculator Numbers
Fourth graders practice working out a hidden number on a calculator by utilizing number sequence in the advanced multiplicative stage seven. They enter a number into their calculator and push the division sign once and go from there.
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Parabola
Students complete a worksheet and explore the parabola conic section during a web based activitiy. They answer questions based on their work as they make changes in the features of the parabola.
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All Shapes and Sizes
Sixth graders recognize international paper formats, especially the A series
Carry out practical measuring tasks on sheets of paper and Find patterns in the lengths of the sides of standard paper formats. They use patterns relating to...
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Toothpick squares
Learners state the general rule for a practical situation. They describe a continuing pattern. They use toothpicks to help visualize the problem and answer it correctly.
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The Fathers' Day Card
Learners subtract using decimals and find half of a decimal number. They write and solve problems which involve decimals and which require a choice of one or more of the four arithmetic operations.
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The Topsy-Turvy Twins
Fourth graders read the problem and brainstorm for ways to solve the problem - list these on the board for the students to refer to as they solve the problem. They work in pairs and focus on the strategy selected.
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The Clumsy Tiler N (Fractions)
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...
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Base 3
Young scholars investigate this problem that aims to give a better idea of our decimal system by looking at a comparable system - the base 3 system. By seeing how base 3 numbers work students should have a better appreciation of base 10...
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South Dakota Quarter Lesson Plans
Students research the history of the South Dakota quarter. Students study the rich history to South Dakota. Students share reasons why the South Dakota quarter was made the way it was made.
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A Brand New Day
Students locate Maine on a classroom map and discuss if Maine is where the nation's first light is found, where would the nation's last light be seen. They explore the idea of the sun rising in the east and setting in the west.
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Number in Statistics
Second graders add two and three digit numbers. They are taught how to calculate the mean and the midpoint. Students are shown how to calculate symmetrical set of numbers. They are shown a model adding the same to each increases the...