Curated OER
Finding LCM
In this finding LCM worksheet, students read a substantial amount of information about finding LCM for numbers, then complete 20 problems using the information given.
Curated OER
Finding LCM
In this LCM worksheet, students read several paragraphs on finding LCM in various situations, then solve 25 problems.
Curated OER
Prairie Adaptations
Twelfth graders consider the survival of prairie plants. They examine how some tallgrass prairie species are adapted to the conditions of their ecosystem. They make a prediction of how a species might change given new conditions.
Curated OER
Maximizing Lumber Cuts
Students examine how lumber companies use each tree to the fullest extent. They practice using a saw blade in which they cut a piece of wood in different configurations to see which cut can waste the least.
Curated OER
Multiplication: Finding Missing Numbers
For this multiplication worksheet, students solve 78 multiplication problems in which one of the factors is missing. Worksheet is in graphic organizer form, 3x3 rows.
Curated OER
Guetemala's Changing Forest
Eighth graders compare their local ecological zone to the tropical rainforest. In this natural ecology lesson, 8th graders complete an activity about the differences in ecological zones. They compare their biome to the Guatemalan...
Curated OER
Forest Ecology or Who Lives Here?
Pupils explore a hardwood forest. In this forest ecology lesson, students examine the diversity and animals and plants as they explore their habitats at Poricy Park Conservatory. Pupils determine how biodiversity and abiotic elements...
Homeschool Math
Homeschool Math: Prime Factorization
This site contains a free lesson on Prime Factorization in which students learn by doing practice problems.
PBS
Pbs: Greatest Common Factor
In this video, learn how to find the greatest common factor of two numbers. Then, see how this can be used to solve problems with large numbers. In the accompanying classroom activity, students learn to find prime factors using factor...
PBS
Pbs: Human Tree: Ratios
Watch as the National Museum of Mathematics creates an interesting series of images using ratios. This video focuses on the proportional relationship observed in fractals and challenges you to do some critical thinking using ratios and...
Illustrative Mathematics
Illustrative Mathematics: G Mg How Many Leaves on a Tree? (Version 2)
For this task, students must estimate the number of leaves on a large tree, taking into account various complex factors such as the area shaded by the tree, the area of irregularly shaped leaves, the uneven distribution of leaves, the...
Calculator Soup
Calculator Soup: Prime Factorization Calculator
Use this prime numbers calculator to find all prime factors of a given integer number up to 1 trillion. This calculator presents prime factors of a number, prime decomposition in exponential form, CSV (comma separated values) list of...