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Prize Numbers
Students explore what a proof is, how and why mathematicians create them and compose essays on how reason and logic are employed in the workplace. They explore whether any three lines can make a triangle and attempt to verify Goldbach's...
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A Steep Hike
Students explore slope. In this middle school mathematics lesson, students analyze and interpret graphs as they investigate slope as a rate of change. Students use a motion detector to collect data as they walk at different...
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How Much Water is There?
Students investigate the amount of fresh water on earth and which water can be used for consumption. In this fresh water lesson plan, students calculate the amount of fresh water that can be used for consumption on earth. They use a 5...
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Living in Base Ten
Students explore scientific notation and the structure of the metric system. In this middle school mathematics lesson, students read How Much is a Million? by David M. Schwartz to introduce students to the need for scientific...
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Partial Products
Students use the partial products algorithm to complete multiplication problems. In this partial products lesson plan, students are introduced to the algorithm and connect the relationship to multiplication and division problems.
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Reciprocal Learning-Decimal Review
Students use reciprocal learning to coach one another in review of their prior learning about decimals. For this peer reciprocal learning decimal review lesson, students participate in conversation, accountability, roles and...
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Match to Multiply
Third graders explore multiplying whole numbers by one- and two-digit numbers using a fun game. When the bell rings student takes first card and writes it on the board. When teacher rings the bell students match numbers with someone from...
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Modular Arithmetic
Students investigate modular arithmetic and how to use it to solve real world problems. In this modular arithmetic lesson, students use computers to work on modular arithmetic after a teacher guided lesson. They complete guided practice...
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Celebrating 100
First graders listen to story "The Pentathlon," discuss importance of number zero, create 100 badge to wear, look for and circle 100 sight words in newspaper, create pictures made with 100 squares of paper, and use interactive writing to...
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Map Making/Floor Plans/Map Reading
Students apply their knowledge of scale when mapping the classroom. They determine the use of a map legend and orient a map using a compass. They create the classroom maps using transfer graph paper.
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Color Me Green If I Am a Five
First graders count by 5's to 100. They use a number chart to identify and mark all numbers ending in five or zero. They use the charts to participate in choral counting.
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Unit 9 Trigonometry
In this trigonometry worksheet, learners find the lengths of triangles. They construct triangles and spirals. Students complete indirect measurement problems. They find the distance between objects and determine the volume of rectangular...
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Get In Line!
High schoolers compare and order fractions and decimals using a number line. They use rules of conversion to determine equivalencies competing problems accurately and plot points on the number line that represent the correct order of the...
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Find That Bargain!
Learners explore the methods of calculating percentages, reading and the construction of graphs, and an awareness of consumer concerns in this lesson. The movement of the decimal point often results in uncertainty and confusion. This...
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Multiplication of Decimals
Students participate in a lesson that explores the concept of using multiplication with decimals. They practice using the operation using whole numbers and progress to the use of decimals. The lesson includes dialogue for the teacher to...
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Subtraction: 3-Digit Regrouping
Third graders listen to a lecture and view a PowerPoint presentation on using regrouping in three-digit subtraction problems. They use a spinner to form three-digit subtraction problems and complete them.
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Oral Language in Mathematics
Third graders examine fractions by descriptively writing about them. In this number sense instructional activity, 3rd graders read number sentences and compare fractions based on their size. Students explain fractions to a friend by...
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Clock Arithmetic and Cryptography
High schoolers investigate modular clock arithmetic and cryptography. They perform basic operations in modular (clock) arithmetic and encode and decode messages using simple shift and affine ciphers.
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Linking Civilizations and Personal Heritage Through Multimedia and Art
Students explore images, symbols, and the relationship they establish with their own personal heritage. They discuss Aztec, Inca, and Maya civilizations. Students interview their family about their own personal heritage. Additional cross...
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Clock Arithmetic and Cryptography
Students explore the concept of modular arithmetic and cryptography. In this modular arithmetic and cryptography lesson, students use applets to explore modular arithmetic using a clock and Caesar Ciphers. Students exchange their ciphers...
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Number Scrolls
Students write the number line. In this numbers instructional activity, students write numbers in numeric order on a number scroll. They find patterns within this number line.
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Rounding And Estimating
Students investigate various types of problems using whole numbers and decimals. They use a discussion format while working example problems to help create a baseline for further independent practice. The lesson also includes praise for...
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Computers Can Only Add
Students explore using mathematics to solve problems in base two. After a teacher demonstration of using base two to write numbers. students model similar problems to explore the concept of number systems in different bases. To increase...