Curated OER
Angular Size and Similar Triangles
In this angular size and similar triangles worksheet, students use the properties of similar triangles and the ratios of sides to solve for unknowns in given diagrams.
American Institute of Architects
Architecture: It's Elementary!—First Grade
Build an interest and appreciation for architecture in your young learners with this fun 10-lesson art unit. Engaging children in using their five senses, the class first observes the environment around them, paying...
Curated OER
Proportions in Flight
Sixth graders calculate wingspan and the body length of the birds and understand how they relate to how the bird flies. In this wingspan lesson plan, 6th graders also calculate their own "wing span" with their arms.
Normal Community High School
Classification of Matter
Steel is an example of homogeneous mixture, also called an alloy, which is made of iron and carbon. The presentation introduces learners to elements, compounds, and mixtures. They explore their similarities and differences, and then take...
Curated OER
Building a Body: Scale, Proportion, and Ratio
Students measure, analyze, and compare the ancient Egyptian canon of proportions using a mummy, painted images, and photographs of people today.
Curated OER
Layering the Air
Young scholars study the layer of the atmosphere. In this activity on the atmosphere, students discuss the composition of the air around us and how the atmosphere was formed. Young scholars create a scale model of the layers of the...
Curated OER
Surface Area of a Leaf (Grades 7-9)
In this math and science learning exercise, learners read about the process of photosynthesis and plant growth. They determine how a plant's ability to create food is dependent on the surface area of its leaves using geometric...
Curated OER
Teaching the Bell Tetrahedral Kite
Students complete readings on kite making and kite flying. They analyze how the parts of a system interconnect and influence each other. Students identifies and uses color and form in a 3D artwork.
Curated OER
How Can we Measure the Rate of a Chemical Reaction?
Students examine different types of chemical reactions. They explore how alcohol molecules affect the reaction rates. They answer discussion questions to end the lesson.