An image of "Two Cut Sunflowers", created by Vincent Van Gogh in August-September 1887, Paris (Oil on canvas, 50 x 61 cm).

An image of "Four Cut Sunflowers", created by Vincent Van Gogh in August-September 1887, Paris (Oil on canvas, 60 x 100 cm).

An image of "Self-portrait with a Sunflower", created by Sir Anthony Van Dyck, c. 1632 (Oil on canvas, 60 x 73 cm).

Here is an exercise to do using a pineapple to explore Fibonacci numbers. Then find the ratios of larger to smaller of each consecutive pair of Fibonacci numbers and graph them to find out the sequence.

A brief look at the creative, but tumultuous, career of artist Vincent van Gogh. Discusses several of his most famous works ("The Potato Eaters" and "Sunflowers"), his artistic influences, and legacy.

The teacher leads a discussion in which students identify the physical needs of animals, and then speculate on the needs of plants. With guidance from the teacher, the students then help design an experiment that can take place in the...

Students plant sunflower seeds in plastic cups, and once germinated, these are exposed to different conditions of light levels and/or soil moisture contents. During exposure of the plants to these different conditions, students measure...

The Wildflowers in bloom photo albumcontains an extensive look at beautiful images of many of the most showy wildflowers.

Second graders will plant seeds and chart their growth.

In this biology lab students will compare two sample populations of sunflower seeds. Comparison of the two populations will be done through the generation of a histogram for each population. One population will be black oil sunflower...

It is hard to imagine a way to mathematically describe a spiral. Spirals are commonly seen in nature. There are a number of different types of spirals. Some interesting examples include the spiral arrangements of scales in pine cones,...

This is a TI-Navigator Activity Center file that is used as a class warm up or for checking understanding. Students are to contribute an equation of a parabola that will pass through the most number of sunflowers.

Van Gogh's canvas "The Starry Night" is an exceptional work of art, not only in terms of its quality but also within the artist's collection, since in comparison to favored subjects like irises, sunflowers, or wheat fields, night...

A Webmuseum English biographical essay of Vincent van Gogh, with a number of art illustrations.

Discover the ecological relationships of six different organisms living in the Alaskan kelp community. The site also contains an interactive map showing the time line for the spread of the Exxon Valdez oil spill.

Twelve different species of plant pollen are highlighted in this engaging resource. For each plant you can view pollen as seen under two different kinds of microscopes. Reproductive cycles and physical traits used for identification are...

Poet Allen Ginsberg is featured in this brief biography for his literary contributions to the Beat movement. See "Allen Ginsberg Activities" for related resources.

This site from the Illinois Natural History Survey provides a large list of grassland plants of the Illinois Tallgrass Prairie - some 851 species. You can find out the common name, scientific name, habitat, flowering period, fruits, and...

Come and check out this awesome farm resource site. Students and teachers will benefit from this compilation of materials.

Analyze primary sources in the media gallery and create an illustrated poem to learn how and why Chinese Americans were seen as threats to American society during the 1800s. This Anti-Chinese movement was one of the earlier incidents of...

This biography of van Gogh expresses his life as one who was important in the formation of Fauvism and expressionism.

Illustrated instructions for a constructing bracelet from a section of the DNA code for a chimp, a sunflower, a grizzly, the human heart, or any one of six other plants or animals.

Students will learn about the symbolic meanings associated with various colors. Then students will design a piece of art with colors that are reflective of their personal emotions.

This site has a basic description of still-life art with several famous examples from great painters.