Illustrative Mathematics
Valid Equalities?
True or false: 20 = 10 + 10. The statement is true because two 10s make a 20. These are the types of equations learners must label or false. They must also explain in mathematical terms how they know.
Illustrative Mathematics
Counting Dots in Arrays
Mathematical arrays can represent several different math skills, including counting groups, multiplication, and even area. In this specific task, learners are asked to identify the addition equations that are equal to a 3 x 4 array....
Cornell University
Thin Films
Combine mathematics and science to calculate measurements of unmeasurable materials. Individuals use knowledge of density and volume to determine the thickness of the film used in production. They also apply stoichiometry to...
Kenan Fellows
Weight and Balance of an Airplane
A career in aeronautics might be calling your class members. Building from the previous two lessons in the series, learners continue analyzing the mathematics of aeronautics. Groups create a paper airplane using paperclips for balance....
Concord Consortium
Two Pounds to Go
How hard can it be to measure out two pounds? A short performance task introduces a situation where a balance scale is broken. It gives a method for measuring out two pounds and asks learners to evaluate the procedure. They must prove...
Concord Consortium
Boards III
Learn to visualize mathematical patterns as a folded pattern. Beginning with a visual display, the task encourages pupils to view sequences as a folded table. The pattern of the table then becomes a formula in a spreadsheet that...
Curated OER
Key Understandings In The Elementary Math Classroom
Students participate in "Key Understandings in the Elementary Mathematics Classroom" that contains examples of anchor questions that can be used to provide a snapshot of each student's ability based on one of the expectations in each...
Curated OER
Lost in Translation
Students reflect on the uses of mathematics in their daily lives and work in pairs to design brochures that make specific mathematical concepts clear and interesting to a popular audience.
Curated OER
Consecutive Numbers
Like all of the Problem Solving units, this one aims to introduce young scholars to the underlying ideas of mathematics through a problem. The problem here requires a knowledge of arithmetic and the use of some algebra. For this unit we...
Curated OER
Equation Translation
Students translate simple mathematical equations into sentences. In this equation lesson, students identify trigger words to translate simple math equations into sentences and sentences into mathematical equations.
Curated OER
Investigation - Who is Right?
Third graders explore mathematics by solving problems in groups. For this math functions lesson, 3rd graders demonstrate their understanding of addition and subtraction by completing two digit math problems. Students define a list of...
Curated OER
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...
Curated OER
Solving Linear Equations
In this solving linear equations worksheet, 9th graders solve and complete 6 different types of problems. First, they maintain a balance on both sides of the equation so that each side remains equal. Then, students apply mathematical...
Curated OER
Discovering Math: Rational Number Concepts
Students explore the concept of Egyptian contributions in mathematics. In this Egyptian contribution lesson, students research Egyptian hieroglyphics and pyramids. Students write numerals in hieroglyphics. Students use Egyptian methods...
Curated OER
A Look Back
Students explore the contributions of women in the field of mathematics. In this middle or high school mathematics lesson plan, students use their reading and listening skills to examine lesson plan targeted at the stereotype of...
Curated OER
Applied Science - Science and Math Pre Lab
Young scholars find Fibonacci sequences. In this applied Science lesson plan, students solve Fibonacci sequence problems. Young scholars explore the mathematical patterns of objects in nature.
Curated OER
Factors and Multiples
Sixth graders need to see the relevance in the mathematics they learn. This lesson builds on the concepts of least common multiple and greatest common factor. The lesson presents real-world problem situations for students to solve.
Curated OER
Linear Functions: Are You Ready for the REAL World?
students emulate a real world problem and model it with mathematics working in a small group. Observe and facilitate discussion as the groups use various strategies, such as (graphs, brainstorming, tables, and dialogue.
Curated OER
Multiplication: Building Models, Representations and Explanations
First graders explore multiplication concepts through skip counting, repeated addition and arrays. Using animal characteristics as a context, 1st graders solve problems using mathematical tools such as hundreds charts, number lines, ...
Curated OER
Diophantus II
Students use an ancient math game to establish the context for solving problems by investigating them in a systematic and mathematical way. They also need to have the ability to solve various types of equations.
Curated OER
Patterns
In this patterns worksheet, students problem solve the answers to six mathematical word problems involving mathematical patterns.
Curated OER
Number Properties - Know 'em, Like 'em, Use 'em
Ninth graders express mathematical properties through creation of advertising jingles.
Curated OER
Circle the Wagons a Number is Missing
Second graders have an opportunity to work in pairs as they search for the missing addend to complete a mathematical sentence. They identify and demonstrate the ability to change the order of the addends and still produce the same sum....
Curated OER
Dimensional Analysis
In this mathematics worksheet, learners apply dimensional analysis to solving each problem. They identify the conversion factor and describe a unique characteristic of a conversion factor. Students also identify the unit in the final...
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