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- Grade Range
- 5th
- Rating
Students use the rules for divisibility and other notions to find the prime factorization of unfamiliar numbers. Full Review »
- Grade Range
- 5th
- Rating
Students use prime factoration and the use of prime and composite numbers. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students complete a unit of lessons on the relationships between decimals, whole numbers, and fractions. They use paper strips to solve fraction problems, view and solve examples, and use calculators to convert fractions into decimal equivalents. Full Review »
- Grade Range
- 6th
- Rating
Students use the prime factorization of numbers to find the greatest common factor and least common multiple. Working in small groups, they solve problems using the greatest common factor and least common multiple. Full Review »
- Grade Range
- 9th
- Rating
Students investigate concepts related to prime, composite, and multiples. They use the examples in various types of problems. The teacher works with the students in order to define some of the different mathematical terms. The lesson includes a sample problem for direct instruction. Full Review »
- Grade Range
- 5th - 6th
- Rating
Like all of the Problem Solving units, this one aims to introduce students to the underlying ideas of mathematics through a problem. The problem here requires a knowledge of arithmetic and the use of some algebra. In this unit we see how a mathematical theory might develop through experimentation, conjecturing, proving, generalising and extending. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students listen to instruction about the difference between prime and composite numbers by observing examples. They then pass out the worksheet and complete it independently for practice. Full Review »
- Grade Range
- 3rd - 6th
- Rating
Students investigate what a prime number is by examining a 100's chart, circling the the primes and crossing off non-primes. They follow a teacher given pattern. They discuss why some numbers are circled and others are crossed off. They discuss the most often used primes. Full Review »
- Grade Range
- 5th - 8th
- Rating
Students explore positive and negative numbers and integers. They work in groups and visit websites in order to create a definition of the three types of numbers. Students search for math websites and create a class list of the websites they visited. Full Review »
- Grade Range
- 7th
- Rating
Students determine the difference between prime and composite numbers. On a Website, they discover a method to identify all the prime numbers up to 100 and also complete several online activities. Once they have discussed the divisibility rules, they practice using them to decide which numbers provided by the teacher are divisible. Full Review »
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