Number Theory Teacher Resources
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Mathematics Within: Algebraic Processes and Its Connections to Geometry
Fifth graders discover the connections between algebra and geometry. With a focus on arrays and factors, they are introduced to multiplication. They develop an array for multiples of 2 through 10 and identify the factors of each row. They also discover patterns and complete a worksheet to end the lesson.
Babylonian Mathematics 2
Students research Babylonian mathematics. They calculate simple surd numbers. Students find the fractional form of rational numbers expressed as decimals. They work with numbers in base 60.
Pattern, Functions, and Algebraic Reasoning
Lower graders explore recursive patterns. They use a calculator to recognize, generate, and explore patterns during arithmetic explorations. The unit provides several assignments of an exploratory nature designed to assist in developing mathematical thinking and reasoning.
As If Numbers Weren't Complex Enough Already!
The class explores the concept of complex numbers on a website to generate their own Mandelbrot sets. They will practice performing operations with complex numbers and then to get a visual understanding, graph the absolute value of a complex number. Students take notes from a website about complex numbers.
Integers in the Weather
Middle schoolers engage in a clever lesson plan that combines meteorology with mathematical thinking. They use integers in relation to high and low temperatures that they record. They use a spreadsheet of weather data, a computer, and gain valuable practice in using integers.
Dealing With Decimals
Seventh graders review procedures for computation with decimals and then complete real world problems regarding sale prices and the stock market that involve decimals. They enter the answers into a table and analyze their findings to find the best bargains.
Am I Worth My Weight in Gold on Another Planet
Pupils calculate their weight on other planets and then enter the data into a spreadsheet program to create a weight chart for themselves.
Students visit the web site NBA.com and choose five teams and one player from each of the five teams. They use players' statistics to form fractions for field goals made, field goals attempted, and round field goal percentages to nearest hundredth.
Put Your Hands on the Values-Math Manipulatives
Fifth graders visit Web sites to recognize place value in whole numbers and decimals. They create place value cards using PowerPoint software.
Mind over Math
Seventh graders, in groups, use Microsoft PowerPoint as an interactive game format for various math problems. They select questions based on point value, solve the presented problems and keep score.
Remainder of One
Fifth graders are introduced to division and remainders. In groups, they are given a set of cubes and read the story a "Remainder of One". While reading the book, they use the cubes to represent the equations mentioned. To end the lesson, they review basic vocabulary related to division.
The Census in Ireland
Fractions in the Kitchen
Seventh graders use the World Wide Web for research, identify fractions found in everyday life by finding a recipe that uses fractions.
Fractions in the Kitchen
Seventh graders use the World Wide Web to locate recipes that contain fractions. They complete a handout to list the recipe ingredients, double the ingredients, and find the least common denominator for the doubled ingredients.
Understanding and Applying Percents
Seventh graders develop a working understanding of percents. They collect examples of "real world" percents. An essay must be written indicating where the application of percent is used and conclude with a persuasive statement supporting the value of them.
Different Perspectives of Oregon's Forest Economic Geography
Students map data on employment in wood products manufacturing in Oregon counties. In this Oregon forest lesson, students discover the percentage of people employed in the forest manufacturing industry. Students create a box and whisker plot for the data. Students color maps of Oregon based on the data. Students create a report about the economic status in Oregon forestry.
Finding the GCF
Students practice using GCF to simplify fractions. In this math lesson, students check their knowledge of GCF using the TI Explorer. This assignment provides step by step instructions to find the GCF on a TI.
Standardized Test Prep: Spelling and Map Skills
In this standardized test prep: spelling and map skills worksheet, 4th graders complete 10 sentences by choosing the word that is spelled correctly, then use a road map to answer 6 questions.
Geometry, Pi, and Ancient Civilizations
By working together, pairs of students will complete a Pi webquest. Using the internet, they examine the ways people in the Ancient Civilizations of Egypt, Babylonia and Greece used Pi. To end the lesson, they review the concepts of radius, diameter and circumference by creating a cartoon or poster to honor and publicize Pi.
Using Two-Step Functions
Budding mathematicians complete activities to learn two-step functions to solve multiplication and division problems. They complete input and output charts to learn to problem solve using two-step functions. Then create their own flow charts to practice the function method.