This short video and interactive assessment activity is designed to teach second graders an overview of addition (sums to 20).
This short video and interactive assessment activity is designed to teach second graders about subtraction: selecting the correct sentence.
This short video and interactive assessment activity is designed to teach third graders about dividing to find the amount.
This short video and interactive assessment activity is designed to teach fourth graders about division terms.
This short video and interactive assessment activity is designed to give fourth graders an overview of complex weight problems (metric units).
This short video and interactive assessment activity is designed to teach fourth graders about using multiplication replacement to find a new amount.
This short video and interactive assessment activity is designed to teach fourth graders about multiple rounds of multiplication - multiplying 3 digits by 1 digit.
This short video and interactive assessment activity is designed to teach second graders about fluency in subtraction (numbers up to 20).
This short video and interactive assessment activity is designed to teach second graders about selecting the correct subtraction sentence.
This short video and interactive assessment activity is designed to teach second graders about addition: selecting the correct sentence.
This video and accompanying interactive assessment practice was designed to teach completing the subtraction sequence to first graders.
This URL links to the main History Colorado site where users can directly search for historical resources off this premiere Colorado OER educational site.
Hominid Skull Set. This is not an Educational Kit, but rather a collection of Hominid skulls that can be checked out in person for classroom use. Teachers should feel free to combine the artifacts with lessons of their choice or creation. The Natural Sciences Education & Outreach Center collaborates with CSU faculty, National Parks and citizen science programs to translate their current scientific research into unique STEM experiences for students in the form of Educational Kits that can be checked out. Each kit contains just about all of the materials needed (minus common things like water and paper towels) to explore some really interesting scientific research topics.The kits are available for teachers and informal educators in Colorado to check out by submitting a local pickup form at the linked website. This collection is provided free for educational use. This collection is not availably for delivery. This Kit is available in Spanish.
This is a kinesthetic activity that demonstrates how shortwave radiation emitted by the sun and longwave thermal radiation emitted by the earth interact differently in the atmosphere. It allows students to experience this difference and reinforces their understanding of greenhouse gases as well. Students should have an understanding of shortwave and longwave thermal radiation and of greenhouse gases before doing this activity, but there is a minimal amount of background information about those topics included in this pdf. Additional resources/background info for teachers can be found on the website for the Little Shop of Physics.
Students will analyze documents from the War Department’s Bureau of Refugees, Freedmen, and Abandoned Lands — better known as the Freedmen’s Bureau — that Congress established on March 3, 1865, as the Civil War was coming to an end. Using the scale in Weighing the Evidence, students will evaluate the effectiveness of the Freedmen’s Bureau in assisting formerly enslaved persons. Learning Objectives: Students will be able to identify and draw conclusions about the roles of the Freedmen’s Bureau (Bureau of Refugees, Freedmen, and Abandoned Lands), critically analyze primary sources, formulate opinions about the effectiveness of the Bureau, and back up their opinions verbally or in writing.
You are going to complete an environmental health risk inventory of your neighborhood or hometown. Before you get started, you may want to review the terminology and familiarize yourself with environmental health risk assessments. If you are curious about how an inventory might look, check out the tutorial to get some ideas.
(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)
This illustrated essay from A Science Odyssey Web site explains the science behind radio waves, including the role of electrons and electromagnetic fields.
Objectives:
- To teach students how different conditions can change seed and sprout growth.
- To introduce photosynthesis.
- To investigate the growing stages of a seed to a plant.
- To introduce the concept of a hypothesis.
A higher lift to drag ratio is a major goal of wing design. Can you find the best lift drag ratio for this plane? Adjust the angle of attack and watch the dots of air flow past the airfoil.
This activity includes two experiments that explore shadows and light and how mirrors can demonstrate how light travels.